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7.1 Modeling Situations with Differential Equations

AP Calculus AB

Modeling Situations with Differential Equations

The modeling framework

Common modeling phrases

Type 1 — Proportional to the quantity

Type 2 — Proportional to a difference

Type 3 — Rate in minus rate out

Type 4 — Direct function of independent variable

Example — Setting up a population model

Example — Mixing problem

Interpreting a given DE

Equilibrium solutions

Setting up from a graph or table

AP exam tips

Vocabulary