plumiExponential growth and decay models: WJEC A‑Level Maths questions
WJEC A-Level Maths past-paper questions on 6.5 Exponential growth and decay models, 2018–2025, with mark schemes and examiner’s reports where available. Add MadAsMaths questions to your practice, or browse them separately by topic and difficulty.
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All 3 questions on Exponential growth and decay models, as a list
- Summer 2023, AS Unit 1, Q14 (6 marks): 4 a) Two variables, x and y, are such that the rate of change of y with respect to x is proportional to y. State a model which may be appropriate for y in terms
- Summer 2022, AS Unit 1, Q8 (7 marks): 8 a) The graph G shows the relationship between the variables y and x, where y∝x. Sketch the graph G. [1] b) Mary and Jeff work for a company which pays its emp
- Summer 2018, AS Unit 1, Q15 (6 marks): 5 The value of a car, £V, may be modelled as a continuous variable. At time t years, the value of the car is given by V = Aekt, where A and k are constants. Whe
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