Nomer 1-3 pilihan ganda ,tolong yah

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Nomer 1-3 pilihan ganda ,tolong yah

Nomer 1-3 pilihan ganda ,tolong yah

1) f(x) = x^2 – x + 1
f(1) = 1^2 – 1 + 1
= 1
Jawaban: B

2) f(x) = x^2 – x + 1
f(-2)= (-2)^2 – (-2) + 1
= 4 + 2 + 1
= 7
Jawaban: D

3) f:x = 4x – 1
f(-5) = 4(-5) – 1 = -21
f(-3) = 4(-3) – 1 = -13
f(-1) = 4(-1) – 1 = -5
f(0) = 4(0) – 1 = -1
f(2) = 4(2) – 1 = 7
f(4) = 4(4) – 1 = 15
f(10) = 4(10) – 1= 39
Jawaban: A