Question

Let u = <-5, -9>, v = <6, 8>. Find -8u - 2v.

Answer 1

if you have au where a is a constant
then au=<-5a,-9a>

Answer 2

if b is a constant
then bv=<-6b,8b>

Answer 3

\[au+bv=<-5a-6b,-9a+8b>\]

Answer 4

Is that it?

Answer 5

yeah except you have -8 instead of a
and -2 instead of b :)