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f(x)=ax+b
f(-3)=-15
f(3)= 9
jawab: f(x)=ax+b
-3a+b= -15
3a+b= 9 -
-6a = -24
a = -24
-6
a = 4
f(x)=ax+b
3(4)+b = 9
12+b =9
b =9 - 12
b =-3
f(x) ax + b
f(x) 4x + -3