抛物线y=﹣2(x﹣3)2+5的顶点坐标是( ) A.(3,﹣5)B.(﹣3,5

抛物线y=﹣2(x﹣3)2+5的顶点坐标是(  )

 

A.

(3,﹣5)

B.

(﹣3,5)

C.

(3,5)

D.

(﹣3,﹣5)

答案

考点

二次函数的三种形式;二次函数的性质..

专题

计算题.

分析:

根据抛物线的顶点式,可直接得出抛物线的顶点坐标.

解答:

解:∵抛物线的解析式为y=﹣2(x﹣3)2+5,

∴抛物线的顶点坐标为(3,5).

故选C.

点评:

本题考查了二次函数的顶点式,从顶点式可以直接得出抛物线的顶点.

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