4MA1/2FR Jun 2022, Question 14: Drawing Straight-Line Graphs
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2FR (Foundation) · Calculator · 3 marks
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The question, in short
On the given grid, plot the straight-line graph of y = 2x − 1 using x values from −1 to 4.
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Solution · 3 marks
- 1calculate y-values using y = 2x − 1 for x = −1: (−1, 2(−1) − 1) = (−1, −3)
- 2for x = 0: (0, 2(0) − 1) = (0, −1)
- 3for x = 1: (1, 2(1) − 1) = (1, 1)
- 4for x = 2: (2, 2(2) − 1) = (2, 3)
- 5for x = 3: (3, 2(3) − 1) = (3, 5)
- 6for x = 4: (4, 2(4) − 1) = (4, 7)
- 7draw a straight line through all six points from x = −1 to x = 4
Answera straight line passing through the points (−1, −3), (0, −1), (1, 1), (2, 3), (3, 5), and (4, 7)
Stuck on a step? Read the free lesson: Drawing Straight-Line Graphs
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