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For the parent function y equals the square root of x what effect does a value of b = -2 have on the graph?

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altavistard
From what you have shared I see y = sqrt(x).  I do not see "b."  

Did you perhaps mean y = -2sqrt(x)?  In that case, the graph of y=sqrt(x) would be reflected in the x-axis and the resulting graph stretched by a factor of 2.

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