math
posted by erick on .
what is the inverse of g(x)= 2/3x+4?

g(x) = (2/3)x + 4
or
y = (2/3)x + 4
inverse :
x = (2/3)y + 4
3x = 2y + 12
2y = 3x  12
y = (3/2)x  6
test:
g(6) = (2/3)(6) + 4
= 8
g^1(8) = (3/2)(8)  6
= 126 = 6
my answer is correct