The math help thread

[COLOR="Magenta"]Help me pass calculus. I'm failing and panicking.

We're on related rates, optimization, and describing graphs without the calculator.

I'm dying.


Here's a problem I just can't figure out. I've got to find the following
a) derivative (straight forward, and easy)
b) minimum points
c) maximum points
d) increasing
e) decreasing
f) second derivative (again straight forward)
g) concave up
h) concave down
i) points of inflection

using the formula f(x) = ln ((x^2) +1)


please don't just solve it, EXPLAIN it for me >: I suck at this class.

Thank you![/COLOR]