Asked by Eve
Find the points on the graph of f where the tangent line is horizontal.
x/x^2+25
I know you have to do the quotient rule to find the derivative, but then I do not know what to do after that.
x/x^2+25
I know you have to do the quotient rule to find the derivative, but then I do not know what to do after that.
Answers
Answered by
Graham
The tangent is horizontal at the point where the derivative is zero.
Solve: dy/dx = 0 when y = x/(x^2+25)
Solve: dy/dx = 0 when y = x/(x^2+25)
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