Question

What is the range of y = x2 – 1, given a domain of {-2,-1,0, 1, 2}?

A. R:{-5, -2, -1,0.3)
B. R: -1 O
C. R:y > -1
OD. R:{-1,0,3}

Answer 1

D

Explanation:

Basically, what the question is asking you to do is plug in each of the domain numbers (because domain represents X) and solve for y. Btw, after plugging in each domain to separate equations, if you end up with two numbers being the exact same, you only need to put one of them, hence why there are only 3 numbers in this answer. Hope with helps, any questions just ask me.