00:01
The given graph shows population versus p prime, our derivative population, or its rate of change.
00:09
So what we can tell based on the given graph is when the population is at a certain level, is it growing or shrinking, and how fast is it growing or shrinking? what we're being asked to provide is a new graph of population itself versus time.
00:26
We can see in our given graph that p prime follows a quadratic trajectory, right? so the population increases more and more rapidly as we get started.
00:39
It reaches its peak growth as the parabola heads to the top, and then the rate of population growth tapers off until the population remains stable, or rather stops increasing, at point k.
00:56
So when population is equal to some point k, its rate of growth is going to be zero.
01:07
So that's going to occur at some time, tk.
01:14
I'm just going to go up and mark that our population is going to plateau here, right? because when it's derivative as zero, it's not increasing anymore...