Foundation January 2020 Paper 1R Q11

EdexcelCurrent spec3 marksDrawing & Using Graphs Linear Graphs & Gradients

11 On the grid, draw the graph of \(\;y = 3x + 2\;\) for values of \(x\) from −2 to 4

Grid with x from −2 to 4 and y from −5 to 14

(3)

Mark scheme

Scheme	Marks
(−2, −4) (−1, −1) (0, 2) (1, 5) (2, 8) (3, 11) (4, 14) Answer: Correct line between \(x = -2\) and \(x = 4\)	B3
	(3)
	(3 marks)

Notes

B3: for a correct line between \(x = -2\) and \(x = 4\)

B2 for a correct straight line segment through at least 3 of (−2, −4) (−1, −1) (0, 2) (1, 5) (2, 8) (3, 11) (4, 14) OR for all of (−2, −4) (−1, −1) (0, 2) (1, 5) (2, 8) (3, 11) (4, 14) plotted but not joined OR for a line drawn with a positive gradient through (0, 2) and clear intention to use a gradient of 3

B1 for at least 2 correct points stated (may be in a table) OR for a line drawn with a positive gradient through (0, 2) OR for a line with a gradient of 3