Question

HELP!!!
Given v=(5,-1) and u=(6,-4) find 3v+2u

Answer 1

Vectors..
first, find 3v. (and 2u)
Basically, you multiply all the components in v by 3.
and so 3v = ?

Answer 2

v=15,-3
u=12,-8

Answer 3

You mean 3v and 2u right? :)

Answer 4

yeah

Answer 5

Well, just add them up :)
Add individual components...

Answer 6

Add their left-coordinates, add their right-coordinates :D

Answer 7

Is it (27,-14)

Answer 8

No... you might want to check -3 - 8 again :P

Answer 9

-11
whoops

Answer 10

yeah that's the one :D

Answer 11

Alright thanks!

Answer 12

No problem :)