Final answer:
To find the inverse of a function algebraically, replace y with x and solve for x. Verify the answer by checking the composition of the function and its inverse. Example: y = 2x + 3, inverse is y = (x - 3) / 2.
Step-by-step explanation:
To find the inverse of a function algebraically, follow these steps:
- Write the function as y = f(x).
- Replace y with x and solve for x. This will give you the inverse function.
- Verify your answer by checking if the composition of the function and its inverse equals the identity function.
For example, if you have the function y = 2x + 3, you would replace y with x to get x = 2y + 3, which can be rearranged to find the inverse function as y = (x - 3) / 2.