Diketahui rumus fungsi f(x)= 3x-5. Nilai f(4)-f(-2) adalah... A. -4 B. -1 C. 6 D. 18

f(x) = 3x-5

f(4) = 3.4-5
f(4) = 12-5
f(4) = 7

f(-2) = 3.(-2)-5
f(-2) = -6-5
f(-2) = -11

f(4)-f(-2) = 7-(-11)
= 7+11
= 18

Semoga membantu yaa☺