4MA1/1F Jun 2020, Question 16: Drawing Straight-Line Graphs
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 3 marks
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The question, in short
On the given grid, plot the straight-line graph of y = 7 − 4x for x values from −2 to 3.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Use x = −2, −1, 0, 1, 2, 3
- 2y = 7 − 4x gives y = 15, 11, 7, 3, −1, −5
- 3Plot (−2, 15), (−1, 11), (0, 7), (1, 3), (2, −1), (3, −5)
- 4Join with a ruler: a straight line from (−2, 15) to (3, −5)
AnswerA straight line through (−2, 15), (−1, 11), (0, 7), (1, 3), (2, −1) and (3, −5)
Stuck on a step? Read the free lesson: Drawing Straight-Line Graphs
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