The growth of cancer tumors may be modeled by the Gompertz growth equation. Let M(t) be the
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The growth of cancer tumors may be modeled by the Gompertz growth equation. Let M(t) be the mass of the tumor for t ≥ 0. The relevant initial value problem is
where a and K are positive constants and 0 < M0 < K.
a. Graph the growth rate function R1M2 = -aM ln M/K assuming a = 1 and K = 4. For what values of M is the growth rate positive? For what value of M is the growth rate a maximum?
b. Solve the initial value problem and graph the solution for a = 1, K = 4, and M0 = 1. Describe the growth pattern of the tumor. Is the growth unbounded? If not, what is the limiting size of the tumor?
c. In the general equation, what is the meaning of K?
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Related Book For
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett
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