Question

If f(x)=2x+5, then what is f(3)?

Answer 1

Answer:

$\Large \boxed{f(3)=11}$

Step-by-step explanation:

$f(x)=2x+5$

For f(3), the input for the function f(x) is 3.

Let x (input) = 3.

$f(3)=2(3)+5 \\\\ f(3)=6+5 \\\\ f(3)=11$

Answer 2

Answer:

11

Step-by-step explanation:

f(x)=2x+5

Let x = 3

f(3) = 2*3+5

     = 6+5

    = 11