Learn about function notation, how to find an inverse function by changing the subject, and how to work with composite functions.

Build and analyze functions that describe relationships between quantities, and use function notation (for example, f (x) denotes the output of f corresponding to the input of x) ...

Generally, you can use the greater than, less than and equal signs you may remember from math class. If you want to check if two values are not equal, use the special Excel not equal notation ...