Question

Let u = <3, -1>, v = <-6, -6>. Find 9u + 2v.

Answer 1

You have `u = <3, -1>`

to get `9u`, you simply multiply each component of `u` by `9` :
`9u = 9<3, -1> = <27, -9>`

Answer 2

Based on that, see if you can guess what `2v` would be..

Answer 3

-12, -12?

Answer 4

Excellent!

Answer 5

`9u = 9<3, -1> = <27, -9>`

`2v = 2<-6, -6> = <-12, -12>`

Now, I'm pretty sure can you guess what `9u+2v` should be..