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f(-3) = a(-3) +b = -15
= -3a +b = -15
f(3) = a(3) +b = 9
= 3a +b = 9
-3a +b = -15
3a +b = 9 +
2b = -6
b = -6/2
b = -3
-3a +b = -15
-3a +(-3) = -15
-3a = -15 +3
-3a = -12
a = -12/-3
a = 4
f(-2) = 4(-2) +(-3)
= -8 +(-3)
= -11
f(2) = 4(2) +(-3)
= 8 +(-3)
= 5
f(-2) +f(2)
-11 +5
-6
a. Nilai a = 4
b. Nilai b = -3
c. Maaf yang c. saya tidak tahu.
d. f(-2) = -11
e. f(2) = 5
f. f(-2) +f(2) = -6
Maaf klo slh.
f(3)=3a+b=9 ~> 3a+b=9
___________ _
-6a=6
a=6:-6
=-1
b. -3a+b=15
-3(-1)+b=15
-3+b= 15
b = 15:-3
-5
c. f(x)=-x+-5
yg terusnya lupa