Write a linear function f with the values f(-4) = 0 and and f(4) = 2.

Answer 1

(-4,0) and (4,2) are points on the line

the line has slope m=(2-0)/(4--4) = 2/8 = 1/4

y = (1/4)x + b, plug in either point to solve for b, the y intercept

2 = (1/4)4 + b

b = 1

the line's equation is y=(1/4)x + 1

or f(x) = x/4 + 1