Question

Let u = <-7, -2>. Find 8u.

Please help me, how do I set this up? Do i multiply -7 by 8 and -3 by 8? Will that give me my answer?

Answer 1

yes, you can multiply a vector by a scalar and it results in a vector


u = c*<a , b> = <ca , cb>

Answer 2

it doesnt change the direction since it just scales up or down

Answer 3

So would my answer just be <-56,-16>?

Answer 4

yes

Answer 5

THANK YOU SO MUCH

Answer 6

welcome