Foundation June 2022 Paper 1 Q13
13 On the grid, draw the graph of \(y = -2x + 3\) for values of \(x\) from \(-1\) to 5
(3)
| Scheme | Marks | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
\((-1, 5)\) \((0, 3)\) \((1, 1)\) \((2, -1)\) \((3, -3)\) \((4, -5)\) \((5, -7)\) Answer: Correct line between \(x = -1\) and \(x = 5\) | B3 | ||||||||||||||||
| (3) | |||||||||||||||||
| (3 marks) |
Notes
B3: for a correct line between \(x = -1\) and \(x = 5\)
(B2 for a correct straight line segment through at least 3 of \((-1, 5)\) \((0, 3)\) \((1, 1)\) \((2, -1)\) \((3, -3)\) \((4, -5)\) \((5, -7)\)
or
for all of \((-1, 5)\) \((0, 3)\) \((1, 1)\) \((2, -1)\) \((3, -3)\) \((4, -5)\) \((5, -7)\) plotted but not joined)
(B1 for at least 2 correct points stated (may be in a table) or plotted or for a line drawn with a negative gradient through \((0, 3)\) or for a line with a gradient of \(-2\))