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Published on Feb 1, 2011
In this video one learns how to find the equation of a quadratic function given three points on the curve. It involves creating three equations using the three points, and doing 3 by 3 elimination. In this video we do the elimination using the inverse matrix method on the graphing calculator. If you need to learn how to do 3 by 3 elimination by hand, I suggest you view the video "Systems of Equations with Three Variables (3 by 3 Elimination) ." This is a complimentary video from Dave Pilmer that aligns with the ALP Quadratic Functions Unit. Did you know you can download free print resources that align with our videos? Search "FREE Math Resources" on YouTube for more information or go to http://gonssal.ca/General-Public/Docu...