f ( x) = y = ( x - 4 ) / ( 33 - x )
( 33 - x ) * y = x - 4
33 y - x y = x - 4
- x y - x = - 33 y - 4 / * ( - 1 )
( we shall multiply both sides of an equation by - 1 )
x y + x = 33 y + 4
x ( y + 1 ) = 33 y + 4
x = ( 33 y + 4 ) / ( y + 1 )
Answer:
The inverse function is:
