What can be explained by the same shape of quadratic function image The shape of y = ax ^ 2 + BX + C is the same as that of y = - x ^ 2-7x + 12, the symmetry axis is x = 1, and the distance from the vertex to the X axis is the root sign 3

What can be explained by the same shape of quadratic function image The shape of y = ax ^ 2 + BX + C is the same as that of y = - x ^ 2-7x + 12, the symmetry axis is x = 1, and the distance from the vertex to the X axis is the root sign 3

The same shape indicates a = + 1 or - 1
X = 1 indicates a = - 2b
The distance from vertex to x-axis is root sign 3, which means 4ac ^ 2-B ^ 2 / 4A = √ 3
Well, it should be done