Question

If the zeros of a quadratic function are 3 and 8, what are the factors of the function?

A. (X + 8) and (x - 3)
B. (x - 8) and (x + 3)
C. (X + 8) and (x + 3)
D. (x - 8) and (x - 3)

Answer 1

D (x-8)(x-3)

Explanation:

Answer 2

D.

one way to write a quadratic equation is using the y = (x-s) (x-r) where r and s are positive zeros.

another way to solve this and think about it would be to plug in your points and equate both sides.

example:
(3,0) (8,0)

0 = (3-8) (3-3)
0 = 0

0 = (8-8) (8-3)
0=0