Function Graphs: Review of the Graphing Calculator

The ability to graph functions is an important aspect of this course. Whether the tool is a graphing calculator, mathematical graphing software, or a web-based interactive calculator, the power of visualization is significant. Remember that the AP Calculus Exam requires use of a graphing calculator and the overwhelming majority of students use the TI-84 plus series graphing calculators. If you are using a different brand of graphing calculator or a TI-Nspire, you may choose to do an internet search to locate video resources to assist you with your specific model.

Graphing with Technology

Basics of Using a Graphing Calculator

This video will teach the basics of a graphing calculator.

Viewing Window

Adjusting the calculator window is often necessary in order to see the entire function graph.

Zooming and Tracing

Using the zoom and trace features are important skills for interpreting graphs.

Using Table Sets and Tables

Using table set and tables to investigate function behavior is reviewed below.

X-Intercepts of Functions

*where the function crosses the x-axis.

Zeroes Functions

Finding the solution to an equation graphically is analogous to graphing two equations and finding their point(s) of intersection. Solving an equation such as x³ - 2x² + x = 0 on a calculator could be accomplished by setting y₁ = x³2x² + x and y₂ = 0, and locating their points of intersection. Oftentimes in calculus, a quicker method is preferable.

Points of Intersection

Points where graphs intersect.

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