Dijawab No 5 yaa! Dengan caranya!

g(x) = (3x + 1)/5

a.
g(3) = (3 . 3 + 1)/5 = (9 + 1)/5 = 10/5 = 2
g(0) = (3 . 0 + 1)/5 = (0 + 1)/5 = 0/5 = 0
g(-20) = (3 .(-20) + 1)/5 = (-60 + 1)/5 = -59/5 = -11 4/5
g(-3) = (3 . (-3) + 1)/5 = (-9 + 1)/5 = -8/5 = -1 3/5

b.
g(a) = 1/2
(3a + 1)/5 = 1/2
3a + 1 = 1/2 x 5
3a + 1 = 5/2
3a = 5/2 - 1
3a = 3/2
a = 3/2 : 3
a = 3/2 x 1/3
a = 1/2