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10 cards from this deck
Two or more dependent variables
Predator-prey dynamics
af+braf + braf+br, cf+drcf + drcf+dr
Rewrite as 2nd-order equation for one variable
Solve the 2nd-order equation
Back-substitute to find other variable
y=Aem1t+Bem2ty = Ae^{m_1t} + Be^{m_2t}y=Aem1t+Bem2t
Constants A and B
Exponential growth, decay, or oscillation
Physical or long-term meaning
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