Multiple Choice: Please select the best answer and dick \'submit.\" Which function is the inverse of y = 2/3 x - 6? y = 2/3 x + 4 y = 3/2.x - 1/6 y = 2/3x + 6 y = 3/2 x + 9 Solution We have y = (2x/3 ) - 6 = ( 2x -18)/3 or , 3y = 2x -18 or, 2x = 3y + 18 so that x = (3/2) x + 9. Now, on switching x and y, the inverse function is y = (3/2) x + 9 . The answer D is correct..