Question

A parabola has zeros -8 and -24. It passes through the point (4,-32). Find the equation of this parabola and put it in factored form

Answer 1

2/21 ( x+8)(x+24)

Explanation:

f(x) = a(x+8)(x+24)

f(4) = -32

a(4+8)(4+24)=-32

a.12.28=32

a= 32 / 336 = 2/21