I. Entering Functions to Graph on the TI-89

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 and the resulting entry in the calculator.

You must put parentheses
around the exponent.
If you leave off the
parentheses, the function
will appear like this.

You need parentheses
around the entire base.

You need parentheses around
both the numerator, the
base in the denominator,
and the exponent.

I. Entering
II. Windows
& Styles
III. Working
with Graphs
IV. Special
V. Other
Graph Modes