HELP I WILL NARK BRAINLIEST

The first one has a rate of change of 7

Step-by-step explanation:

I think it is 7.

Step-by-step explanation:

I think f(x) is the linear equation.

now 19-12 is 7

26-19 is 7 and so on.

So the rate of change is the slope, y/x

y = 7 and x = 1

so the rate of change is 7/1, or just 7

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.