Which table could be a partial set of values for a linear function? PLEASE HELP I WILL MARK BRAINLIEST!!!

3rd option, bottom left

3, 5, 7, 9

Step-by-step explanation:

In a linear function, every step in x has to have an equal step in y.

1.

9 to 8 = -1

8 to 5 = -3

5 to 0 = -5

The steps chance in size, so this cannot be a linear function.

2.

1 to 2 = 1

2 to 5 = 3

5 to 10 = 5

This is also not a linear function.

3.

3 to 5 = 2

5 to 7 = 2

7 to 9 = 2

This one could be a linear function.

4.

I already got the answer above and this one is clearly not linear so I won't write it out.