Question

A parabola has a vertex (5,-10) and passes through the point (10,-25). Determine the equation of this parabola and put it in vertex form.

Answer 1

-3/5(x-5)^2-10

Explanation:

f(x)= a (x-5)^2 -10

f(10)=-25

a ( 10-5)^2 -10 = -25

a . 25 = -15

a = -15/25 = -3/5