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
Matematika
ALIHSAN34
Pertanyaan
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!!!
1 Jawaban
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1. Jawaban FieraAri
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