4MA0 Higher June 2016 Paper 3 Q5
5 On the grid, draw the graph of \(y = 3x - 5\) for values of \(x\) from −2 to 3
(4)
| \(x\) | −2 | −1 | 0 | 1 | 2 | 3 |
|---|---|---|---|---|---|---|
| \(y\) | −11 | −8 | −5 | −2 | 1 | 4 |
| Scheme | Marks |
|---|---|
| \(y = 3x - 5\) drawn from \(x = -2\) to \(x = 3\) | B4 |
| (4) |
Notes
B4: For a correct line between \(x = -2\) and \(x = 3\)
B3 For a correct straight line segment through at least 3 of (−2, −11) (−1, −8) (0, −5) (1, −2) (2, 1) (3, 4)
OR
for all of (−2, −11) (−1, −8) (0, −5) (1, −2) (2, 1) (3, 4) plotted but not joined
B2 For at least 2 correct points plotted (ignore incorrect points)
OR
for a line drawn with a positive gradient through (0, −5) and clear intention to use a gradient of 3
(eg. a line through (0, −5) and (0.5, −2)
B1 For at least 2 correct points stated (may be in a table) or may be shown in working eg. 3 × 2 – 5 = 1
OR
for a line drawn with a positive gradient through (0, −5) but not a line joining (0, −5) and (3, 0)
OR
a line with gradient 3