Intermediate November 2023 Unit 2 Q9
9. The diagram below shows the graph of the straight line \(y = 2x + 4\) for values of \(x\) from –3 to 3.
(a) Draw the line \(x = 2\) on the graph paper. [1]
(b) Write down the coordinates of the point where the lines \(y = 2x + 4\) and \(x = 2\) intersect. [1]
The coordinates of the point where \(y = 2x + 4\) and \(x = 2\) intersect = (…………… , ……………)
| Scheme | Marks | Comments |
|---|---|---|
| \(x = 2\) drawn | P1 | Award P0 if other lines are drawn unless \(x = 2\) is unambiguously indicated. Ignore the line \(y = 8\) drawn from (0,8) to the given line. Their line must be drawn at least 5 small squares in length. |
Corrected by Westie's Workshop
- The board's mark scheme printed “Their line must be drawn must at least 5 small squares in length.”. Changed to “Their line must be drawn at least 5 small squares in length.” because the word “must” was repeated by mistake.
Original: see the board's mark scheme PDF (link above).
| Scheme | Marks | Comments |
|---|---|---|
| (2 , 8) | B1 | FT correct intersection of ‘their drawn straight line \(x = 2\)’ and the given line. |