4MA1/1HR Jun 2020, Question 6: Length of a Line Segment
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1HR (Higher) · Calculator · 2 marks
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The question, in short
Using the given coordinates of A and B and the midpoint of AB, find the values of a and b.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1(−3 + 47) / 2 = 44 / 2 = 22
- 2(11 + b) / 2 = −19
- 311 + b = −38
- 4b = −38 − 11 = −49
- 5a = 22, b = −49
Answera = 22, b = −49
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