Question

SOLVE BOTH

if f(x)=2x+8, find f(5)

if f(x)=3x+4, find f(8) ​

Answer 1

Explanation:

simple! plug in the 5 for x, f(5)=2(5)+8

f(5)=10+8

f(5)=18

f(8)=3(8)+4

f(8)=28