(a) On the grid below, draw \(\overrightarrow{\text{AB}}\).
[2]
(b) Work out \(\overrightarrow{\text{AC}}\). [2]
(c) Write down \(\overrightarrow{\text{BA}}\). [1]
Mark scheme (a)
Answer
Marks
Part marks and guidance
\(\begin{pmatrix} 3 \\ -1 \end{pmatrix}\) drawn with correct arrow
2
B1 for \(\begin{pmatrix} 3 \\ -1 \end{pmatrix}\) drawn with no or incorrect arrow or \(\begin{pmatrix} 3 \\ 1 \end{pmatrix}\) drawn with an arrow in either direction
Accept freehand Ignore BC on diagram Accept as part of triangle
Mark scheme (b)
Answer
Marks
Part marks and guidance
\(\begin{pmatrix} 5 \\ 5 \end{pmatrix}\)
2
B1 each value
Penalise by 1 mark first appearance of vinculum or poor form in vector but condone second use (applies to (b) and (c))
Mark scheme (c)
Answer
Marks
Part marks and guidance
\(\begin{pmatrix} -3 \\ 1 \end{pmatrix}\)
1
Penalise by 1 mark first appearance of vinculum or poor form in vector but condone second use (applies to (b) and (c))
