Question

When 3 is put into the f(x) machine, 13 comes
out. When 4 is put in, 16 comes out, and when
-3 is put in, -5 comes out. Explain in words and
with an algebraic equation what this machine is
doing to any number, x, that is put into it.

Answer 1

if you look at the pattern it would be x times 3 plus four so your function is f(x)=3x+4