y=x square root of 8-x^2
I did the derivative, -2x^2 square root of 8-x^2/2 square root 8-x^2
but I don't know if it's right.
Find the intervals on which the function is:
a) increasing?
b) decreasing?
c) concave up?
d) concave down?
e) local extreme values?
f) inflection points?