INVERSE OF A FUNCTION
Example: Find the inverse of f (x) = x^{2} + 2 There are two steps to find the inverse: Step 1: Solve the equation for x in terms of y y = x^{2} + 2 x^{2} = y  2 Step 2: Then interchange x and y
First graph the original function. To graph the inverse of the function, reflect the graph in the line y = x Domain of f (x) is the range of f^{ 1}(x). the range of f^{ 1}(x) is the domain of f (x).
