A quadratic function knows how to find an expression for an image

A quadratic function knows how to find an expression for an image

General form
Y = ax & # 178; + BX + C (a ≠ 0, a, B, C are constants), vertex coordinates (- B / 2a, 4ac-b & # 178 / 4A)
Vertex type
Y = a (X-H) ^ 2 + K (a ≠ 0, a, h, K are constants), vertex coordinate is (h, K), symmetry axis is x = h,
Algebra.
Two points on the x-axis are the roots of the general equation
The axis of symmetry is x = B / - 2A, which is also an algebra