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b) Bayangan dari 2 ~> f(x) = 4x - 2
f(2) = 4(2) - 2
= 8 - 2
= 6
Bayangan dari -2 ~> f(x) = 4x - 2
f(-2) = 4(-2) - 2
= -8 - 2
= -10
Bayangan dari 4 ~> f(x) = 4x - 2
f(4) = 4(4) - 2
= 16 - 2
= 14
Bayangan dari -4 ~> f(x) = 4x - 2
f(-4) = 4(-4) - 2
= -16 - 2
= -18
c) Nilai p ~> f(x) = 4x - 2
8 = 4(p) - 2
8 = 4p - 2
-4p = -2 - 8
-4p = -10
4p = 10
p = 2,5