Question

Let u = <-7, -2>. Find 4u

Answer 1

and whats the confusion?

Answer 2

i don't know how to solve it?

Answer 3

this is very basic material that should be covered in your text or online content.

just multiply the parts of u, by 4

Answer 4

really? just -7*4 and -2*4?

Answer 5

yep

Answer 6

u = <-7,-2>

4u = <-7*4, -2*4>
=<-28,-8>

Answer 7

wow i don't feel stupid at all...*sarcastic remark*

Answer 8

lol, it cant get much simpler :) and if you ask about adding vectors, you might wanna cry afterwards

Answer 9

doing as we speak! haha

Answer 10

so tell me, if multiply a vector multiples the parts; adding vectors would amount to adding like parts right?

<4, 5 >
+<1,-3>
---------
<5,2 >

Answer 11

good luck ;)

Answer 12

haha thankyou