Anonymous

f (x) = 1/9 x - 13 f ^-1 (x) = 1/(1/9 x - 13) = 9/(x - 117)

Anonymous

y = (1/9) x -13 Interchange x and y x = (1/9) y -13 solve for y x+13 = (1/9) y 9(x+13) = y y = 9x+117 f^-1(x) = 9x+117

Anonymous

Given that f (x) = 1/9 x – 13 f ^ ̄ 1 (x) = ? let y = f (x) = 1/9 x – 13 y = 1/9 x – 13 y + 1 3 = 1/9 x x = 9y + 117 Now f ^ ̄ 1 (x) = 9y + 117

Anonymous

x = y/9-13 9x = y -117 y = 9x + 117 f^-1(x) = 9x + 117