求Y=4(X+3)²-1和Y=2-2x²的顶点坐标Y=4(X+3)²-1Y=2-2x²
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求Y=4(X+3)²-1和Y=2-2x²的顶点坐标Y=4(X+3)²-1Y=2-2x²
求Y=4(X+3)²-1和Y=2-2x²的顶点坐标
Y=4(X+3)²-1
Y=2-2x²
求Y=4(X+3)²-1和Y=2-2x²的顶点坐标Y=4(X+3)²-1Y=2-2x²
1.Y=4X²+24X+35
对称轴为-b/2a=-3
把X=-3带入
Y=-1所以顶点坐标为(-3,-1)
2对称轴为-b/2a=0
把X=0带入
Y=2
所以顶点坐标为(0,2)
-3 ,-1
0,2