f(x)=7x-4/5 f^{-1} (x)= ? 5/4/2014 | Mondrea from Germantown, MD | 2 Answers | 0 Votes Mark favorite Subscribe Comment
To find the inverse of a function, switch the places where x and y appear, and then solve the new equation for y. Original Equation: f(x)=7x-4/5 OR y=7x-4/5 Step 1: Switch x and y x=7y-4/5 Step 2: Solve for y x+4/5=7y x/7+4/35=y Answer: f^{-1}(x) = x/7 + 4/35 5/4/2014 | Karn D. Comment