Steps 
Key Sequence 
Screens 
1. Input Function, PiecewiseDefined Function, or Parametric Equation. 
Press DIAMOND key, then F1 key (for Y=) 


Type the function 

2. Graph 
Press DIAMOND key, then F3 key 

3. Evaluate Function 
Press F5 


Press 1 (for Value) 


Type in value for x or trace function until you reach the value for x. 

Note: For a parametric equation: type in value for t or trace curve until you reach the value for t. 
Note: In this case, we are evaluating the function at x = –1. 

Press ENTER 

Note: In this case, f(–1) = 2. 