means is contained in. So reads is contained in the interval .
positive doesn't mean is increasing.
on the interval is positive but decreasing.
I'm not really understanding how to do this problem.
My first step is to take the derivative and find the critical numbers.For the function is defined by
On Which two intervals is the function increasing?
___to___
and
___to___
Find the region in which the function is positive?
___to___
Where does the function achieve it's minimum?
___
But what I don't get is:
What does this mean?
Is a different way of saying find where the function is increasing?For
Find the region in which the function is positive?