F (x) = - 3x+1 and the steps

I will plug in 3 numbers for you ...

F (x) = - 3 (x) + 1

f (1) = - 3 (1) + 1

f (1) = - 3+1

f (1) = - 2

f (x) = - 3 (x) + 1

f (2) = - 3 (2) + 1

f (2) = - 6+1

f (2) = - 5

f (x) = - 3 (x) + 1

f (3) = - 3 (3) + 1

f (3) = - 9+1

f (3) = - 8

You basically plug in numbers for x and do it the way I did it