# How do you find the points where the graph of the function #f(x) = x^4 - 4x^3# has horizontal tangents?

##### 1 Answer

Feb 7, 2016

That will happen when the derivate is zero. In x=0 and x=3.

Feb 7, 2016

That will happen when the derivate is zero. In x=0 and x=3.

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