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Mathematics 7 Online
OpenStudy (anonymous):

y-1=(4x)^2+7 what does the 4 in the equation do? It stretches the graph vertically by a factor of 4. It shrinks the graph horizontally to 1/4 the original width. It shrinks the graph vertically to 1/4 the original height. It stretches the graph horizontally by a factor of 4. I say C.

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