Question

PLEASE HELP! What is a quartic function with only the two real zeros given?
x = -4 and x = -1

A. y = x^4 + 5x^3 + 5x^2 + 5x + 4
B. y = x^4 - 5x^3 - 5x^2 - 5x - 4
C. y = -x^4 + 5x^3 + 5x^2 + 5x + 4
D. y = x^4 + 5x^3 + 5x^2 + 5x - 5

Answer 1

The answer is A.

Graph each one here: https://www.desmos.com/calculator

Then find out which one has 2 x-intercepts of -4, and -1. (Which is A)

Answer 2

Thank you very much.