Mathematics 0580 · IGCSE · Coordinates

Coordinates — practice question

Take $\mathbf{a} = \begin{pmatrix}3\\5\end{pmatrix}$ and $\mathbf{b} = \begin{pmatrix}-8\\7\end{pmatrix}$.

(a)[1]

Write $3\mathbf{a}$ in vector form.

(b)[1]

Write $\mathbf{a}-\mathbf{b}$ in vector form.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$\begin{pmatrix}9\\15\end{pmatrix}$” …