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b. f(2) = 4(2)-2=8-2=6
f(-2) = 4(-2)-2 = -8-2= -10
f(4) = 4(4)-2=16-2=14
f(-4) = 4(-4)-2= -16-2= -18
c. 8 = 4p-2
8+2=4p
10 = 4p
p = 10:4 = 2,5
semoga membantu.
f(x) = 4x - 2
Jawaban soal B
bayangan (daerah hasil) dari 2, -2, 4, -4,:
f(2) = 4(2) - 2
= 8 - 2
= 6
f(-2) = 4(-2) - 2
= -8 - 2
= -10
f(4) = 4(4) - 2
= 16 - 2
= 14
f(-4) = 4(-4) - 2
= -16 - 2
= -18
jawaban soal C
jika 8 adalah bayangan dari p, maka:
f(p) = 8
f(p) ⇒ 4p - 2 = 8
4p = 8 + 2
4p = 10
p = 10/4
p = 5/2