4MA1/2FR Jun 2018, 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 + 3 using x values from −2 to 4.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Work out y = 2x + 3 for each x from −2 to 4
- 2x = −2, −1, 0, 1 give y = −1, 1, 3, 5
- 3x = 2, 3, 4 give y = 7, 9, 11
- 4Plot the points and join them with a straight line from (−2, −1) to (4, 11)
AnswerA straight line through (−2, −1), (−1, 1), (0, 3), (1, 5), (2, 7), (3, 9), (4, 11)
Stuck on a step? Read the free lesson: Drawing Straight-Line Graphs
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