4MA1/1H Jun 2023, Question 13: Equation of a Line Through Two Points
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1H (Higher) · Calculator · 3 marks
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The question, in short
Find the equation of the straight line passing through A(–5, 12) and B(19, –48).
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Solution · 3 marks
- 1(12 − (−48)) / (−5 − 19) = 60 / (−24) = −2.5
- 2y − 12 = −2.5(x + 5)
- 3y = −2.5x − 12.5 + 12
- 4y = −2.5x − 0.5
Answery = −2.5x − 0.5
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