Question

Determine the x-intercept(s) of the function that translates the original function f(x)=x2
down 4 units.(1 point)

x=−2
and x=2


x=−16
and x=16


x=−4
and x=4


There are no x-intercepts.

Answer 1

Set y = 0: 0 = x^2 − 4 ⇒ x^2 = 4 ⇒ x = ±2.

So the x-intercepts are x = −2 and x = 2.