Bradford T. answered 05/06/21
Tutor
4.9
(29)
Retired Engineer / Upper level math instructor
The equation for a line is:
y-y0 = m(x-x0)
y0 = 3, x0 = 8 and m = 7
y = 7(x-8) + 3
y = 7x-56+3
f(x) = 7x-53
So, to answer your question, f(x) does not equal -7x+3.