Practice!

Sample Problem

Which of the following is a graph of the function y = 2x with domain -3, -2, -1, 0, 1, 2, 3?

Solution

The function y = 2x with domain -3, -2, -1, 0, 1, 2, 3 should go through all of the following points:

x

y

-3

-6

-2

-4

-1

-2

0

0

1

2

2

4

3

6

The only graph that goes through all of these points is graph A