Question

Suatu fungsi didefinisikan dengan aturan f(x) = 5x + A dan f(-3) = -12. Rumus fungsi tersebut adalah......
A. f(x)=5x-12
B. f(x)=5x-3
C. f(x)=5x+12
D. f(x)=5x+3

Answer 1

F(x) = 5x+ a
f(-3) = -12
-12 = 5(-3) + a
-12 = -15 + a
-12 + 15 = a
3 = a

f(x) = 5x + 3