Answer:
f(1)=17
f(-2)=-7
[tex]f(\frac{1}{2})=13[/tex]
Step-by-step explanation:
We are given that a function [tex]f(x)=8x+9[/tex]
We have to evaluate f(1),f(-2) and [tex]f(\frac{1}{2})[/tex]
Substitute x=1 in the given function then we get
[tex]f(1)=8(1)+9=17[/tex]
f(1)=17
Substitute x=-2 in the given function then we get
[tex]f(-2)=8(-2)+9=-16+9=-7[/tex]
f(-2)=-7
Substitute [tex]x=\frac{1}{2}[/tex]
Then we get
[tex]f(\frac{1}{2})=8(\frac{1}{2})+9=4+9=13[/tex]
[tex]f(\frac{1}{2})=13[/tex]
