来自戴平的问题
已知抛物线y=-x2+2x+2,则该抛物线的顶点坐标是______.
已知抛物线y=-x2+2x+2,则该抛物线的顶点坐标是______.
1回答
2020-07-2903:01
已知抛物线y=-x2+2x+2,则该抛物线的顶点坐标是______.
已知抛物线y=-x2+2x+2,则该抛物线的顶点坐标是______.
∵y=-x2+2x+2,
=-(x2-2x+1)+3,
=-(x-1)2+3,
∴抛物线y=-x2+2x+2的顶点坐标为(1,3).
故答案为:(1,3).