1MA0 Higher November 2014 Paper 2 Q12
12 On the grid, draw the graph of \(y = 2x - 3\) for values of \(x\) from \(-2\) to 3
(4)
| Answer | Mark | Notes |
|---|---|---|
| Straight line from \((-2, -7)\) to (3, 3) | 4 | (Table of values) C1 for axes scaled and labelled M1 for at least 2 correct attempts to find points by substituting values of \(x\) M1 ft for plotting at least 2 of their points (any points plotted from their table must be plotted correctly) A1 for correct line between \(x = -2\) and \(x = 3\) (No table of values) C1 for axes scaled and labelled M1 for at least 2 correct points with no more than 2 incorrect points M1 for at least 2 correct points (and no incorrect points) plotted OR line segment of \(y = 2x - 3\) drawn A1 for correct line between \(x = -2\) and \(x = 3\) (Use of \(y = mx + c\)) C1 for axes scaled and labelled M1 for line drawn with gradient of 2 OR line drawn with a \(y\) intercept of \(-3\) M1 for line drawn with gradient of 2 AND with a \(y\) intercept of \(-3\) A1 for correct line between \(x = -2\) and \(x = 3\) SC : B2 for the correct line from \(x = 0\) to \(x = 3\) |
Working
| \(-2\) | \(-1\) | 0 | 1 | 2 | 3 |
| \(-7\) | \(-5\) | \(-3\) | \(-1\) | 1 | 3 |