Why does the ST-term in the T'-equation have a negative sign, while the ST term in the S'- equation has a positive sign? (check all that apply) ST term is positive in S equation because tuna reproduce more rapidly than sharks O ST term is negative in T equation because tuna die faster than sharks ST term is negative in T equation because it represents interactions in which tuna die ST term is positive in S equation because it represents interactions which feed sharks

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Populations of tuna T and sharks S interact according to the system of equations. 

T'=4T-0.2ST

S'=0.001ST-0.5S

Put T horizontally and S vertically 

 

 

Why does the ST-term in the T'-equation have a negative sign, while the ST term in the S'-
equation has a positive sign? (check all that apply)
ST term is positive in S equation because tuna reproduce more rapidly than sharks
ST term is negative in T equation because tuna die faster than sharks
ST term is negative in T equation because it represents interactions in which tuna die
ST term is positive in S equation because it represents interactions which feed sharks
Transcribed Image Text:Why does the ST-term in the T'-equation have a negative sign, while the ST term in the S'- equation has a positive sign? (check all that apply) ST term is positive in S equation because tuna reproduce more rapidly than sharks ST term is negative in T equation because tuna die faster than sharks ST term is negative in T equation because it represents interactions in which tuna die ST term is positive in S equation because it represents interactions which feed sharks
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