Question

What are the x-intercept(s) of the graph of y + 20 = x2 − x?

Answer 1

A (−4, 0) and (−5, 0)
B (−4, 0) and (5, 0)
C (4, 0) and (−5, 0)
D (4, 0) and (5, 0)

Answer 2

y + 20 = x^2 − x
y = x^2 - x - 20
To find x-intercepts, put y=0 into the equation.
x^2 - x - 20 = 0
x^2 - 5x +4x - 20 = 0
x (x-5) + 4 (x-5) = 0
(x+4)(x-5) = 0
x+4 = 0 or x-5 = 0 => solve these two equations to get the answers!

Answer 3

thanks

Answer 4

Welcome :)