G(x)= ax+b , jika G(-4)= -4 ,, dan G(-6)=12,, maka bentu fungsi G adalah ??

g(x) = ax + b
g(-4) = - 4a + b = - 4
g(-6) = - 6a + b = 12
------------------------------(-)
2a = - 16
a = - 8
- 4a + b = - 4
- 4(-8) + b = - 4
32 + b = - 4
b = - 4 - 32
b = - 36
g(x) = - 8x - 36