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f(2) = a(2) +b = 4
= 2a +b = 4
f(-3) = a(-3) +b = -1
= -3a +b = -1
2a +b = 4
-3a +b = -1 -
5a = 5
a = 5/5
a = 1
2a +b = 4
2(1) +b = 4
2 +b = 4
b = 4 -2
b = 2
f(x) = x +2
f(1) = 1 +2
= 3
Itu jawabannya.