Given $f (x) = 5 x - 12$ $f(x)=5x-12$ , how do you evaluate f(3)?

Question

12603 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-01-06T17:42:41

$f (3) = 3$ $f(3) =3$

Plug in 3 for x, and simplify

$f (x) = 5 (x) - 12$ $f(x) = 5(x) - 12$

$f (3) = 5 (3) - 12$ $f(3) = 5(3) -12$

$= 15 - 12$ $=15-12$

$f (3) = 3$ $f(3) =3$

Given f(x)=5x−12f(x)=5x-12, how do you evaluate f(3)?