bantu kak siapa pun trimakasih GBU, nomor 8,9,10

8) a
krn : f(x) = 2x - 1
f(3) = 2(3) - 1 = 5 bkn 4

9) g(x) = ax + b
g(-2) = - 2a + b = - 4
g(-6) = - 6a + b = 12
-------------------------------(-)
4a = - 16
a = - 4
- 2a + b = - 4
- 2(-4) + b = - 4
b = - 4 - 8
b = - 12
g(x) = - 4x - 12
jwb B

10) f(x) = 2x - 1
f(-1) = 2(-1) - 1 = - 3
f(0) = 2(0) - 1 = - 1
f(1) = 2(1) - 1 = 1
f(2) = 2(2) - 1 = 3
jawab A