Am I thinking right about this following question:(adsbygoogle = window.adsbygoogle || []).push({});

Give a geometric argument to show that the graph of y = lxl has no tangent line at the point (0,0).

Since that graph would be basically the bisectors of the 1st and second quadrants, why can't the x-axis be that tangent line?

(def. of a tangent line is a line that touches the graph at one point, which is the origin in this case)

thanks

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# Simple problem

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