Dont know where to start: f(x) = 4x - 3 -------- 2 a. find its inverse f^-1(x) b. f o f^-1
F flew62999 New member Joined Aug 30, 2005 Messages 47 Dec 6, 2005 #1 Dont know where to start: f(x) = 4x - 3 -------- 2 a. find its inverse f^-1(x) b. f o f^-1
G Gene Senior Member Joined Oct 8, 2003 Messages 1,904 Dec 6, 2005 #2 y = f(x) = (4x - 3)/2 Start by solving for x = ? Then interchange x and y That's how you find f<sup>-1</sup>(x) b) the result should be y = x
y = f(x) = (4x - 3)/2 Start by solving for x = ? Then interchange x and y That's how you find f<sup>-1</sup>(x) b) the result should be y = x