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ZingPath: Graphing Quadratic Functions

Approximating Zeroes of Quadratic Functions with Graphs

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Graphing Quadratic Functions

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Lesson Focus

Approximating Zeroes of Quadratic Functions with Graphs

Algebra-1

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You get to approximate the zeroes of quadratic functions by visually inspecting their graphs, and by using graphing technology.

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Now You Know

After completing this tutorial, you will be able to complete the following:

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  • Explain the correspondence between the x-intercepts of a graph, zeroes of the related function, and solutions to the related equation.
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  • Approximate the zeroes of a quadratic function by visually inspecting the graph.
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  • Approximate the zeroes of a quadratic function by using graphing technology.
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Everything You'll Have Covered

Tutorial Details

Approximate Time 20 Minutes
Pre-requisite Concepts Students should understand the concepts of quadratic equation and quadratic function and know the definition of x-intercept.
Course Algebra-1
Type of Tutorial Skills Application
Key Vocabulary approximate zeroes, functions, graphing technology