Hi, I need help on a math problem that asks me to find k such that the line is tangent to the function, given[tex]f(x) = x^2 - kx[/tex] and [tex]y = 4x - 9[/tex].(adsbygoogle = window.adsbygoogle || []).push({});

I don't know how to solve for k. Is "tangent line" the same thing as the equation that is the derivative of the function?

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# Homework Help: Tangent line

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