|INVERSE OF A FUNCTION
Example: Find the inverse of f (x) = x2 + 2
There are two steps to find the inverse:
Step 1: Solve the equation for x in terms of y
y = x2 + 2
x2 = 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).