问题描述:
已知点A(-2,-c)向右平移8个单位得到点A',A与A'两点均在抛物线y=ax2+bx+c上,且这条抛物线与y轴的交点的纵坐标为-6,则这条抛物线的顶点坐标是( )
A. (2,-10)
B. (2,-6)
C. (4,-10)
D. (4,-6)
A. (2,-10)
B. (2,-6)
C. (4,-10)
D. (4,-6)
问题解答:
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