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OpenStudy (aonz):
Find the derivative of f(x)=x^2 - ax and find a if the tangent at the vertex has y-intercept -9
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OpenStudy (aonz):
i found the derivative to be 2x - a
OpenStudy (anonymous):
you have calculate the derivative. tangent is nothing but this derivative only.
OpenStudy (anonymous):
you have been given the value of y at the vertex
OpenStudy (aonz):
ok...
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