Operations:  Entering Absolute Values

The absolute value function is a required function.  Apply it from two different sources.

1.   Press MATH             
2.    Use the right arrow key to put the cursor over NUM 
3.      Press either 1 or ENTER, since the absolute value function is first on the list.
4. Enter the expression to be inside the absolute value lines and close the parentheses.
5. If you started in the home screen, the calculator will evaluate the expression using whatever variable values are stored, take its absolute value and show the answer.
6. If you started in the Y= menu screen, the calculator will be able to graph the absolute value function.
   
   
   
   A second way to access the absolute value function is by pressing 2nd-CATALOG: (this is a listing of all the functions in the calculator.  It is handy here because abs(...  is the first item)  Press ENTER and you are done.