4MA0 Foundation June 2016 Paper 1 Q14
14 On the grid, draw the graph of \(y = 3x - 5\) for values of \(x\) from −2 to 3
(4)
| Scheme | Marks | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Answer: \(y = 3x - 5\) drawn from \(x = -2\) to \(x = 3\) | B4 | ||||||||||||||
| (4) |
Notes
B4: 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