Question

A function is defined by f(x)=6x +15 . What is f(2.5)?

Answer 1

f(2.5)=30

Explanation:

f(2.5)=6(2.5)+15 plug in 2.5 for x

f(2.5)=15+15 multiply 2.5 by 6

f(2.5)=30 add