Question

What is the range of the function y = 5 - 2x when the domain is {0, 1, 2, 3}?

Answer 1

Answer: {5, 3, 1, -1}

Explanation:

So, domain is the x-values and range is the y-values. You're trying to find the y-values. The problem gives you the domain: {0, 1, 2, 3}. So now you plug in the x values into the equation to get the y-values.

1. y = 5 - 2(0)

y = 5

2. y = 5 - 2(1)

y = 3

3. y = 5 - 2(2)

y = 1

4. y = 5 - 2(3)

y = -1

So, now you have the y-values, or range.

{5, 3, 1, -1}

I hope this helps you!