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OpenStudy (anonymous):
find a, b, c such that the graph of y=ax^2+bx+c passes through (-1,1), (0,1) and (1,2)
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OpenStudy (anonymous):
plug in those values for (x,y) and you will have 3 different linear equations with a, b, and c. You can then solve that system for your values a, b, and c. Plugging them back into your quadratic will give you the equation for the graph that passes through those points.
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