Vectors Practice Questions

Question 1

4 marks

You may use a calculator for this question.

AA is the point (−2, 5)(-2,\ 5) and BB is the point (3, −1)(3,\ -1).

(a)

Write AB→\overrightarrow{AB} as a column vector.

(b)

CC is the point such that BC→=(−4−2)\overrightarrow{BC}=\begin{pmatrix}-4\\-2\end{pmatrix}.

Write down the coordinates of CC.

(c)

Work out the length of AB→\overrightarrow{AB}.

Give your answer correct to 1 decimal place.

Question 2

4 marks

Do not use a calculator for this question.

The vectors u\mathbf{u} and v\mathbf{v} are shown on the grid.

uv

(a)

Write u\mathbf{u} as a column vector.

(b)

Work out 2u+v2\mathbf{u}+\mathbf{v} as a column vector.

(c)

On the grid, draw and label the vector u−v\mathbf{u}-\mathbf{v}.