Question

If vector r = ❬5, 11❭ and s = ❬9, –8❭ then which is r – s?

Answer 1

To add or substract two vectors, add or substract the corresponding components.

Since r=<5,11> and s=<9,-8>, then:

$\begin{gathered} r-s=\langle5,11\rangle-\langle9,-8\rangle \\ =\langle5-9,11--8\rangle \\ =\langle-4,11+8\rangle \\ =\langle-4,19\rangle \end{gathered}$

Therefore, the correct choice is option 2:

$r-s=\langle-4,19\rangle$