Mathematics A-Level
proportionality in calculus
What proportionality in calculus means in Mathematics A-Level, as defined for WJEC.
Definition of proportionality in calculus
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Reference: WJEC
Statements of direct proportionality translate to dy/dt = ky, where k is a positive constant for growth or negative for decay.
Topics that use proportionality in calculus
- Differentiation (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- algebraic simplification
- Chain rule
- compound angle expansion
- concave curves
- connected rates of change
- convex curves
- differential equations formulation
- differentiation from first principles
Using proportionality in calculus in the exam
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