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Tool: Graphical Function Explorer (GFE) - Math Open Reference
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A free web-based function graphing tool. Graph up to three different functions on the same axes. Functions can refer to up to three independent variables controlled by sliders. As you move the sliders, the graphs change in real time to reveal the effects of the variables.

Control the range of the sliders, the x,y axis limits, and line thickness. An optional vertical cursor line can be dragged laterally to show the values of the functions for that x value.

Grapher can be expanded to fill the whole screen - useful in a classroom using a projector or Smartboard. Charts can be saved for easy recall in lectures and sharing with students.

This resource is a component of the Math Open Reference Interactive project at

Technology Type: Flash 
Author: John Page
Language: English 
Cost: Does not require payment for use

Average Rating:  [3] Login to rate this resource
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Reviews: see the 1 review of this resource / add a review of this Tool 
Discussions: see the 3 posts discussing this resource

Courses: Algebra Graphing, Solve by graphing, Graphing, Graphing, Graphing Quadratics, Solve by graphing, Graphing

Teacher Review (Not based on classroom experience)
Reviewer: Betty14, Sep 1 2010 12:50:22:357AM
Appropriate for: introduction to a concept, practice of skills and understandings, applications of a concept or technique, advanced investigations
Ability to meet my goals: Effective
Recommended for: Algebra: Functions / Relations, Linear Equations, Polynomials
Algebra II: Solving systems of equations, Quadratic Equations, Functions / Relations, Transformations of functions, Polynomials, Rational Equations, Exponential Functions, Logarithmic Functions
Trigonometry: Trig Functions, Inverse Functions, Solving Trig Equations
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Comment:Very easy to use, a vast choice of functions, tracer point