June 2019 Paper 2 Q7
7
(a) On the grid, sketch a graph for which
the rate of change of \(y\) with respect to \(x\) is always zero. [1 mark]
(b) On the grid, sketch a graph for which
the rate of change of \(y\) with respect to \(x\) is always a positive constant. [1 mark]
| Answer | Mark | Comments |
|---|---|---|
| Horizontal straight line | B1 | mark intention |
Additional guidance
| Ignore any attempt at an equation | |
| Mark the entire graph on the grid | |
| Ignore any graph not on the grid | |
| Line clearly drawn on the \(x\)-axis | B1 |
| Line does not need to start from the \(y\)-axis | |
| Ignore any points plotted |
| Answer | Mark | Comments |
|---|---|---|
| Straight line with gradient \(\gt 0\) | B1 | mark intention |
Additional guidance
| Ignore any attempt at an equation | |
| Mark the entire graph on the grid | |
| Ignore any graph not on the grid | |
| Vertical line | B0 |
| A straight line joined to another line with a different gradient | B0 |
| Line does not need to start at (0, 0) | |
| Ignore any points plotted |