Foundation June 2017 Paper 1 Q27
27

\(ABCD\) is a parallelogram.
The diagonals of the parallelogram intersect at \(O\).
\(\overrightarrow{OA} = \mathbf{a}\) and \(\overrightarrow{OB} = \mathbf{b}\)
(a) Find, in terms of \(\mathbf{b}\), the vector \(\overrightarrow{DB}\). (1)
(b) Find, in terms of \(\mathbf{a}\) and \(\mathbf{b}\), the vector \(\overrightarrow{AB}\). (1)
(c) Find, in terms of \(\mathbf{a}\) and \(\mathbf{b}\), the vector \(\overrightarrow{AD}\). (1)
| Answer | Mark | Notes |
|---|---|---|
| \(2\mathbf{b}\) | B1 | oe |
| Answer | Mark | Notes |
|---|---|---|
| \(\mathbf{b} - \mathbf{a}\) | B1 | oe |
| Answer | Mark | Notes |
|---|---|---|
| \(-\mathbf{a} - \mathbf{b}\) | B1 | ft oe |