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This webpage checks how well you understand parabolas, i.e. graphs of the quadratic equation y = ax^2+bx+c. Any such equation can be rewritten in the form y = a(x-h)^2 + k using a procedure called completing the square. Below is a graph of a parabola for specific values of a, h, k. Your aim is to find these values and plot the graph of the same function.

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When you are done, you can print this page (in landscape mode).

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Peter Jipsen, Chapman University, Dec 2004