Question

What is the overall maximum value of the function `f(x)=(18x)/(4+x^2)` on the interval (0,4)?

Answer 1

I found a max at:
`x=2`
`y=4.5`

Explanation:

You can find the first derivative of your function and set it equal to zero. This will allow you to find points where the slope of the tangent is zero; basically your tangent will be horizontal at these points so representing max or min of max of your function.