y=-1/2x²+2x化为顶点式
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/23 19:19:37
y=-1/2x²+2x化为顶点式y=-1/2x²+2x化为顶点式y=-1/2x²+2x化为顶点式y=-1/2(x²-4x)=-1/2(x²-4x+4-
y=-1/2x²+2x化为顶点式
y=-1/2x²+2x化为顶点式
y=-1/2x²+2x化为顶点式
y=-1/2(x²-4x)
=-1/2(x²-4x+4-4)
=-1/2(x²-4x+4)+2
=-1/2(x-2)²+2