Question

Give the range of x - 2y = 0 for the domain {-1, 0, 4}.
A. Range = {-2, 0, 8}
B. Range = {-1, 0, 4}
C. Range = {5, 0, -2}
D. Range = {-1/2, 0, 2}

Answer 1

Range = y-values

Answer 2

So plug in the domain, or x-values into the equation. That'll give you the y-values, which is the range, then choose the correct choice!

Answer 3

I dont get it. but ok

Answer 4

Like for the first one, take -1 and plug it in for x. Then solve for y.

Answer 5

That's the first range.

Answer 6

That doesn't even make sense to me. I've been sick for a while and forgot all math, and now im all confused :/

Answer 7

Ill walk you through the first one:

Answer 8

. So I subtituted -1 for x. Do you get that?