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【331222】22.1.3 第2课时 二次函数y=a(x-h)2的图象和性质

时间:2025-01-21 13:47:55 作者: 字数:2217字
简介:

2课时 二次函数y=ax-h2的图象和性质


基础练习

1.抛物线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 的顶点在( ) <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

A.第一象限 B.第二象限 C <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 轴上 D <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 轴上

2 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> .二 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 次函数 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 与一次函数 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 在同一坐标 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 系中的大致图象为( )




[来源:||Z|X|X|K]

3.把抛物线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 向左平移2个单位得到抛物线 ;若将它向下平移2个单位,得到抛物线  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> .

4. 已知抛物线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> ,x  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> , <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> yx的增大而增大;x ,yx的增大而减小.

5. 若点P <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> Q1 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> )都在抛物 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 上,则线段PQ <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 的长为

能力拓展

6.已知抛物线与 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 轴的交点的横坐标分别是 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>2,且与 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 轴的交点的纵坐标是 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> ,求该抛 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 物线的解析式。













[来源:Z_xx_k

[来源:||Z|X|X|K]


7 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> .某年 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 7月某地区遭受严重的自然 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 灾害,空军某部队奉命赴灾区空投物资,已知空投物资离开飞机后在空中 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 沿抛物线降落,抛物线顶点为机舱舱口A。如图所示。如果空投物资离开A处后下落的垂直高度AB=160米,它到A处的水平距离BC=200米,那么要使飞机在垂直高度AO=1000米的高度进行空投,物资 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 恰好准确地落在居民点P处,飞机到P处的水平距离OP应为多少米?

 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>







创新学习

8.已知抛物线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 的顶点为C,直线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 与抛 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 物线交于AB两点.

试求 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> .

[来源:Z.xx.k.Com]






[ <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 来源:Z*xx*k.Com]




参考答案


1C 2C 3 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 4 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> <-2  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> >-2 [来源: <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> Z.xx.k.Com]

5 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> PQ2 6 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

7.由题意得A01000),C200840).

设抛物线的表达式为 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> C200840)代入, <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

解得 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

所以 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 时, <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

解得 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> (舍去),

所以飞机应在距P处的水平距离OP <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 应为500米的上空空投物资.

8.根据题意可知抛物线 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 的顶点C的坐标为(2,0),

由 { <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> 解得{ <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> .

所以A(6,16) ,B(0,4 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> ). 画出草图.

AAD <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> ⊥x,垂足为D,

 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> =  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> -  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> - <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>

=  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> (OB+AD)·OD - <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> OC ·OB -  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> CD·AD

=  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a>  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> (4+16)×6 -  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> ×2×4 -  <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> ×4×16 = 24 <a href="/tags/16/" title="课时" class="c1" target="_blank">课时</a> <a href="/tags/386/" title="性质" class="c1" target="_blank">性质</a> <a href="/tags/885/" title="函数" class="c1" target="_blank">函数</a> <a href="/tags/898/" title="图象" class="c1" target="_blank">图象</a> .[来源:学科网]