Question

find the coordinates of the absolute extrema of the function f(x)= (40x)/ (x²+25) on the interval [-40,40]

Answer 1

I'm guessing you're using calculus here, right?

Answer 2

yea

Answer 3

How do you find extrema using 1st and 2nd derivatives? (generally speaking)

Answer 4

uhh.. find derivative and plug the numbers i think?

Answer 5

I would recommend reviewing the examples here.

http://tutorial.math.lamar.edu/Classes/CalcI/MinMaxValues.aspx

Answer 6

hmm thanks