Rumus fungsi x adalah f (x) = ax + b jika f(-4) = 8 dan f (3) = -13, maka nilai 2a – 3b =…

F(-4)=a(-4) + b = 8
=-4a + b = 8
f(3)= a(3) + b = -13
= 3a + b = -13
-4a+b=8
3a+b=-13
________-
-7a=21
a=21/-7
a= -3

b= -4a+b=8
= -4(-3) +b = 8
=12+b =8
b=8-12
b= -4
a = -3 dan b=-4
2a-3b =…
2(-3) – 3(-4)
-6+12=6