0580/23 Oct/Nov 2021, Question 18: Equation of a Line Through Two Points
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 3 marks
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The question, in short
Find the equation of the straight line through (2, −2) and (3, 10), giving it in the form y = mx + c.
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Solution · 3 marks
- 1m = (10 − (−2))/(3 − 2) = 12
- 2−2 = 12 × 2 + c
- 3c = −26
- 4y = 12x − 26
Answery = 12x − 26
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