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= 30 + (-30)
= 0
> f (-2) + f (2) = 9 (-2) + 9 (2)
= -18 + 18
= 0
Maaf klau slah
f(3) = 3a + b = 9
-3a + b = 15
3a + b = 9
_____________ -
-6a = 6
a = -1
3a + b =c9
3(-1) + b = 9
-3 + b = 9
b = 12
f(-2) = ax + b
= -1(-2) + 12 = 14
f(2) = ax + b
= -1(2) + 12
= 10