Let x.t / be a harmful insect population (aphids?) that under natural conditions is held somewhat in check by a benign predator insect population y.t / (ladybugs?). Assume that x.t / and y.t / satisfy the predatorprey equations in (1), so that the stable equilibrium populations are xE D b=q and yE D a=p. Now suppose that an insecticide is employed that kills (per unit time) the same fraction f

Quadric Surfaces SUGGESTED REFERENCE MATERIAL: As you work through the problems listed below, you should reference Chapter 11.7 of the rec- ommended textbook (or the equivalent chapter in your alternative textbook/online resource) and your lecture notes. EXPECTED SKILLS: ▯ Be able to compute & traces of quadic surfaces; in particular,...