下列说法正确的是( )
A.二次函数y=(x+1)2﹣3的顶点坐标是(1,3) |
B.将二次函数y=x2的图象向上平移2个单位,得到二次函数y=(x+2)2的图象 |
C.菱形的对角线互相垂直且相等 |
D.平面内,两条平行线间的距离处处相等 |
更新时间:2018-04-01 23:37:41
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【推荐1】已知抛物线
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A.两个都对 | B.两个都错 | C.只有①对 | D.只有②对 |
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【推荐2】关于二次函数
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【推荐1】如图,四边形
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