Math Aids
Math Aids: Function Table Worksheets
Great resource to practice and strengthen math skills pertaining to function tables. Math worksheets are printable, may be customized, and include answer keys.
Other
Onlinemath4all: Find Values of Inverse Functions From Tables
Presents a problem on how to find the values of an inverse function using a table. The solution is provided.
Illustrative Mathematics
Illustrative Mathematics: F if the Customers
This is a beginning lesson on the concept of functions. The context is a business that has a database of customer names and phone numbers in a table and students must decide if a function is involved. Aligns with F-IF.A.1 and 8.F.A.1.