Consider the following.

f(x) = 8x (square root of (x − x^2))

(a) Use a graph to find the absolute maximum and minimum values of the function to two decimal places.

1 answer

well, f(x) is only defined on 0 <= x <= 1

Visit

http://rechneronline.de/function-graphs/

and enter 8x*sqr(x-x^2) for your function. Set the range of y to be 2.5 to 3 and the peak will be quite clear