Question

Which of the following pairs of functions are inverse of each other? A.f(x)=x-8/4+9 and g(x)=4(x+8)-9

B. F(x)=3(x/2)-4 and g(x)=2(x+4)/3
C. F(x)=3(2/x)-10 and g(x)=x/6+10
D.f(x)=4(x-12)+2 and g(x)=x+12/4-2
Plz help

Answer 1

B

Explanation:

Y = 3x/2 - 4

replace the variables to find the inv function

x = (3y/2)-4

solve for y

×+4 = 3y/2

2(x+4) = 3y

y = 2(x+4) /3