Write an equation that defines the function also only if you can please explain so I can get better or not (Comment with no answer=reported)

ANSWER:

So for this problem you are going to need to do an slope triangle (change in y over change in x). You need to just pick two random points if the rate is visibly consistent.
I’m using the points 0,20 2,5
-15
——
2
=-7.5

Hope this is right and if anyone sees this call me out if I’m wrong

Good luck