Question

Diketahui f(x) = 2 - 3x tentukan fungsi a. f(x) jika x = 4 b. nilai x jika f (x) = -16 c. nilai b jika f(2-b) tolong di jawab ya penting banget plss plss plss!!!

Answer 1

F(x) = 2 - 3x

a) f(4) = 2 - 3(4)
f(4) = 2 - 12
f(4) = - 10

b) f(x) = - 16
2 - 3x = -16
-3x = -16 -2
-3x = -18
x= 6

c) f(2-b) = 2 - 3(2 -b)
f(2-b) = 2 - 6 + 3b
f(2-b)  = 3b - 4