Answer: 9
Step-by-step explanation:
f(x)=3x−2
Put x = 8 in f(x)=3x−2
f(8)=(3×8)-2
= 24 - 2
= 22
Put x = 5 in f(x)=3x−2
f(5) =(3×5)-2
= 15 - 2
= 13
f(8)−f(5)
22 - 13
9
