Question

For f(x) = 3x + 2, find f(3)

Answer 1

f(3) = 11

Explanation:

To evaluate f(3) substitute x = 3 into f(x) , that is

f(3) = 3(3) + 2 = 9 + 2 = 11

Answer 2

sub x = 3

f(3) = 3( 3 ) + 2

=9 + 2

=11