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0580/23 May/Jun 2026, Question 8: The Gradient of a Straight Line

Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Non-calculator · 4 marks

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The question, in short

A straight line L is drawn on a coordinate grid from −5 to 5. Find its gradient, then draw the line y − 2x + 3 = 0 on the same grid.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (a) · 2 marks

Work out the gradient of the line L shown on the grid.

  1. 1L passes through (0, 1) and (3, −1)
  2. 2Gradient = (−1 − 1)/(3 − 0) = −2/3

Answer−2/3

Part (b) · 2 marks

Draw the straight line y − 2x + 3 = 0 on the grid.

  1. 1Rearrange: y = 2x − 3
  2. 2Plot (0, −3), (1, −1), (3, 3)
  3. 3Join with a straight ruled line

AnswerCorrect line from at least (0, −3) to (3, 3)

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Also searched as: 0580/23/M/J/26 · 0580_s26_qp_23 · 0580 s26 23 · question 8.
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