Question

What is f(5) if f(x)=8x-3

Answer 1

It would be f(x)=37

Answer 2

f(5)=37

Explanation:

We have the function f(x)=8x-3,

f(5) is the value of the function f when x=5, then you have to replace f(x) with x=5,

f(x)=8x-3

f(5)=8.(5)-3

f(5)=40-3

f(5)=37