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F(-4)= 29
F(2)=-7
-4a + b = 29
2a + b = -7
(Eliminasi)
-6a = 36
A = -6
2(-6)+b = 7
-12+ b = 7
B = 19
F(-3)= -3a+ b
= -3(-6) + 19
= 18+19 = 37
f(-4)=ax(-4)+b=29
F(2)=ax(2)+b=-7
pake cara eliminasi
-4ax+b=29
2ax +b=-7
_________ -
-6ax=36
ax=36 / -6
ax=-6
= -4(-6)+b=29
= 24 +b=29
b=29-24
b=5
maka
F(3)=3(-6)+5=x
x=18+5
x=23
jadi F(3)=23