Seems like a simple problem, but I have no idea how to accomplish this!(adsbygoogle = window.adsbygoogle || []).push({});

f(x) = x^2 +4

I have to find a tangent line to the graph that passes through the point (0,0).

I know the derivative is 2x, but I don't know how to mathematically figure out the which (x,f(x)) the tangent line would pass through..!

Any help would be appreciated

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# Homework Help: Tangent lines to a f(x)

**Physics Forums | Science Articles, Homework Help, Discussion**