Question

Tolong bantu saya menjawab pertanyaan ini,

Answer 1

1a) f(x) : 2 - 4x
b) f(-2) = 2 - 4(-2) = 10
f(0) = 2 - 4.0 = 2
f(2) = 2 - 4.2 = (-6)
f(4) = 2 - 4.4 = (-14)
2a) G(x) : 5x - 8
b) G(2) = 5.2 - 8 = 2
G(-2) = 5(-2) - 8 = (-18)
G(5) = 5.5 - 8 = 17
G(1) = 5.1 - 8 = (-3)
c) G(x) = 5x - 8
17 = 5x - 8
5x = 17 + 8 = 25
x = 25 : 5 = 5