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  • 5 years ago

how to graph quadratic inequalities: Number 6 on this worksheet http://www.kutasoftware.com/FreeWorksheets/Alg1Worksheets/Graphing%20Quadratic%20Inequalities.pdf y => -2x^2+16x-34 i divide everything by -2, flip the sign, then get y<x^2-8x+17 but when i plug in positive 1 into x, i get positive 10 and it's supposed to be negative 10 WHY??

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  1. anonymous
    • 5 years ago
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    Why are you dividing by -2? It's already solved for y. Just graph y=-2x^2+16x-34 and the solution will be the region above that line

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