PLEASE HELP ME WITH THIS

Step-by-step explanation:

The last one: {(-2,-2), (0,0), (-4,-4), (0,-2)}

Step-by-step explanation:

In a function, the x value should not repeat.

The only option that has 2 of the same x values is the last one.

Another way to do this is the vertical line test.

Graph all points, and if two points are on the same vertical line, it's not a function. If all points are on different vertical lines, it is a function.

Hope this helps you understand! :D

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half