<PRE><B>Question 683064</B>
a student says that the graph of y= ax2 + bx+ c gets wider as a incereases.
A. Error Analysis use examples to show that the student is wrong.
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Compare y = x^2(red) to y = 9x^2(green)
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{{{graph(400,400,-10,10,-10,10,x^2,9x^2)}}}
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Cheers,
Stan H.
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