Concept explainers
Populations of birds and insects are modeled by the equations
(a) Which of the variables, x or y, represents the bird population and which represenl5 the insect population? Explain.
(b) Find the equilibrium solutions and explain their significance.
(c) Find an expression for dy/dx.
(d) The direction field fur the
(e) Use part (d) to make rough sketches of the bird and insect populations as functions of time. How are these graphs related to each other?
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Calculus, Early Transcendentals
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