I. Entering the Function in the Graph Window
D. Exponential Functions
When entering exponential functions, you must put parentheses around any exponent that is a product or a rational number. For example, if you enter the function as without using parentheses, the calculator will read the function as .
Enter the functions and note the use of parentheses for exponents and the rational function y2.
Example: Enter the functions shown.
Put parentheses around
the base expression and the exponent. 

Put parentheses around
the numerator, denominator and the expression. 

Functions entered. 