Exponential Graphs

This page will point out basic information on graphing exponential functions. 

Example:  Graph an exponential function.

Steps:
To start, from choose Sketchpad B: Graphs OR Documents 1. New

From "Documents:
• If you see "Save?", usual response is "no".
•

• Choose option 2. Add Graphs
•

• Use the caret key ^ (to the left of x2 )
to enter an exponent where 2 ^ x becomes 2x.
OR
Get the exponent symbol from template list:
f1(x) =
• Type "x" in the template.

• to see the graph.

Note: The horizsontal asymptotes (f4 and f5) have been graphed separately.

Exponential Functions

Exponential functions have
horizontal asymptotes. These are lines that the graph approach, getting closer and closer, but they do not touch the line nor cross the line.

Several possible graphs are shown:

f1: y = 2x

 parent style function
horizsontal asymptote at y = 0
f2: y = 2x - 4 translated function 4 units down
horizontal asymptote at y = -4
f3: y = -3•2x

stretch function, negated function reflected over x-axis
horizontal asymptote at y = 0

Table of Contents MathBits.com Terms of Use TI-84+ Web Site