Question

Let u = <-5, -3>, v6, -1>. Find -3u + 5v.

Answer 1

Can you type the question again?@lauren9695

Answer 2

u and v are vectors

if you multiply a vector by a coefficient, you multiply each of its terms
example: 3* <a ,b>= <3a, 3b>

Answer 3

to add two vectors, you add their corresponding elements

for example <1,2> + < 3,4> = <1+3, 2+4>

Answer 4

if u = <-5, -3>
what is -3u ?

Answer 5

wouldn't you put them together so it would be 15*3

Answer 6

no it will be <15,9>

Answer 7

oh I see but none of the choices are that answer

Answer 8

5<6,-1>=<30,-5>
adding <15,9>+<30,-5>=<45,4>
so ans is<45,4>

Answer 9

you have to do this problem in steps.

first -3u
then 5v
then add those two results together.

Answer 10

oh thank you sooo much can you help with one more question