Find the critical point and the interval on which the given function is increasing or decreasing, and apply the First Derivative Test to the critical point. Let f(x) = -3 / (x^2+6)
Critical Point =
Is f a maximum or minumum at the critical point? Local Min
The interval on the left of the critical point is
On this interval, f is Decreasing while f' is Negative
The interval on the right of the critical point is
On this interval, f is Increasing while f' is Positive