Answer:
The answer is 3
Step-by-step explanation:
[tex]when \: x = 2 \\ f(x) = 3 \times 2 + 5 = 11 \\ when \: x = 3 \\ f(x) = 3 \times 3 + 5 = 14 \\ then \: the \: change \: is = 14 - 11 = 3[/tex]
