Question

What is the range of the function f(x) = 12 − 3x for the domain {-4, -2, 0, 2, 4}?

A.{24, 18, 12, 6, 20}

B.{6, 12, 18, 24, 30}

C.{-12, -6, 0, 6, 12}

D.{0, 6, 12, 18, 24}

Answer 1

What you will want to do is plug in each of your x-values that you were given into where it says "x" ..

so.. y= 12-3(-4) which means y=0 ! Since you know that 0 is now one of your options, you can get rid of A and B seeing how they don't have 0 on the list.

Answer 2

thank you