Question

Tolong kerjakan no12-13
Pakai cara
Makasih

Answer 1

Itu no.12 jwbnya a.-6 kalau adayang salah maaf ya

Answer 2

12.f(x) =ax+b
f(-3)=a.-3 +b = -15
= -3a+b= -15
f(3)= a.3+b=3
=3a+b=3
f(-2)=
f(2)
kita harus mencari nilai a dan b terlebih dahulu
-3a+b=-15
a+b= 3
_________ -
-6a = -18
a= 3

b= 3a+b=3
3.3+B=3
9+b= 3
b=3-9=-6
f(-2)= ax+b
f(-2)=3.-2+-6
=-6+-6=-12
f(2)=ax+b
=3.2+ -6
=6+-6 = 0