## SamuelAlden917 2 years ago What is the range of y = 5x -2 if the domain is {-3, -1, 0, 1, 3}? Answer {-13, -3, 2, 3, 13} {12, 3, 0, 3, 13} {-17, -7, -2, 3, 13}

1. knick032

Plug all the values of the domain in for x. The answers you get will be the range.

2. SamuelAlden917

Im sorry. What is the answer?

3. knick032

I explicitly told you how to find the answer. It doesn't get any easier than that.

4. SamuelAlden917

Its B?

5. SamuelAlden917

?

6. SamuelAlden917

or is it A?

7. knick032

When you plug -3 into the equation for x, what number do you get for y?

8. SamuelAlden917

I have no idea.

9. knick032

What is 5 times -3?

10. SamuelAlden917

-30

11. knick032

Incorrect. Let's just do 5 times 3. One of your hands has 5 fingers, right? How many fingers would you have if you had 3 hands?

12. SamuelAlden917

15?

13. knick032

Yes. But since we're multiplying 5 times negative 3, we put a negative sign in front of the answer. So 5 times -3 = -15. In the original equation, it says y = 5x - 2. So now you need to solve: -15 minus 2.

14. SamuelAlden917

-13!

15. knick032

Actually, since we're subtracting from a negative number, the answer will be "more negative." Another way to think of it is -(15+2). So you would solve for 15+2, and then put a negative sign in front of it. What do you get?