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a.f(2)=a(2)+b=6
2a+b=6
f(-5)=a(-5)+b=-1
-5a+b=-1
2a+b=6
-5a+b=-1 -
-3a =5
a =5+3
a =8
a+b=5
8+b=5
b =5-8
b =-3
jadi nilai a=8 dan b=-3
f(2) = a(2) +b = 6
= 2a +b = 6
f(-5) = a(-5) +b = -1
= -5a +b = -1
b. f(x) = ax +b
f(-1) = a(-1) +b = -11
= -a +b = -11
f(3) = a(3) +b = 1
= 3a +b = 1