Answer:
f(x) = 3x-8
Step-by-step explanation:
y −4 = 3 (x − 4)
We want to write the equation in y = mx+ b form
Distribute the 3
y-4 = 3x -3*4
y-4 = 3x -12
Add 4 to each side
y -4+4 = 3x-12+4
y = 3x-8
Since the want it in function form, f(x)
f(x) = 3x-8