Foundation November 2018 Paper 2 Q25
25 \(A\) is the point with coordinates (5, 9)
\(B\) is the point with coordinates (\(d\), 15)
The gradient of the line \(AB\) is 3
Work out the value of \(d\). (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| 7 | P1 | process to use gradient eg \(y = 3x + c\) or \(c = -6\) or \(\dfrac{15 - 9}{d - 5}\) or \((15 - 9) \div 3\) or (6, 12) |
| P1 | (dep) full process to rearrange equation formed to isolate \(d\) eg rearrangement of \(15 = 3d - 6\) or \(3 = \dfrac{15 - 9}{d - 5}\) or for \(5 + \dfrac{15 - 9}{3}\) | |
| A1 | cao |
Additional guidance
Condone use of a letter other than \(d\), for \(d\)
Must show processes to get as far as \(d =\)
Award P2 for an answer of (7, 15)