Chapter 9.6, Problem 19P

To determine

(a)

To locate:

The point corresponding to the given situation on the given slope field and to draw the trajectory through that point.

To determine

(b)

To find:

The direction of the point moving along the trajectory by using arrow and to justify the result using the differential equations for $\frac{dr}{dt}$ and $\frac{dw}{dt}$.

To determine

(c)

To find:

The largest population of the robin and the population of worm when the population of robin is at its largest.

To determine

(d)

To find:

The largest population of the worm and the population of robin when the population of worm is at its largest.