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Applications of Quadratic Equations - Problem 4

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Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

If you're allowed the use of a grapher, whether it be a graphing calculator or online program, you can solve quadratic equations by setting up a system of equations. Let your first function into your calculator be y = one side of your given equation, and let the second function be y = the other side of your quadratic function. From there, use the commands to find where the two graphs intersect. Here, we model the commands on a TI grapher to confirm what we do by hand.

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