Higher November 2018 Paper 2 Q23

AQACurrent spec1 markVectors

23 \(PQR\) is a straight line.

\(PQ : QR \;=\; 3 : 1\)

\(\overrightarrow{PQ} = \mathbf{a}\)

Not drawn accurately

A straight line with points P, Q and R marked in order; PQ is three times as long as QR

Circle the vector \(\overrightarrow{RQ}\) [1 mark]

  • \(\dfrac{1}{3}\mathbf{a}\)
  • \(\dfrac{1}{4}\mathbf{a}\)
  • \(-\dfrac{1}{3}\mathbf{a}\)
  • \(-\dfrac{1}{4}\mathbf{a}\)