4MA1/2HR Jan 2022, Question 17: Speed from a Curved Travel Graph
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
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The question, in short
Estimate the gradient of the curve y = f(x) at x = 2 using the given grid diagram, showing your working clearly.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Draw a tangent to the curve at x = 2
- 2Select two points on the tangent, for example (1, −0.5) and (3, 3.5)
- 3(3.5 − (−0.5)) / (3 − 1) = 4 / 2 = 2
- 42
Answer1.5 to 3
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