Question

Find the magnitude and direction of vector XY for X(1, -4) and Y(6, 3). Show all work.

Answer 1

magnitude is root(74)

Answer 2

direction arctan (1.4)

Answer 3

how do you get that? I dont understand.

Answer 4

the magnitude is the distance between the 2 pts

Answer 5

\[=\sqrt{(x2-x1)^2+(y2-y1)^2}\]

Answer 6

whts the vector XY?

Answer 7

@him1618 I dont know. Thats all I was given.

@angela210793 isnt that the distance formula?

if so I understand!

Answer 8

XY=(6-1)=(5)
(4+4) (8)

Answer 9

vector XY can be obtained by X - Y..understand?

Answer 10

@angela its 5,7

Answer 11

yea tht's the distance
and @Him aren't wht i wrote the coordinates of XY?

Answer 12

wht's 5.7?

Answer 13

XY is a vector angela it doesnt have coordinates
im saying the vector XY is 5,7..u wrote 5,8

Answer 14

yea ur right is 5;7(typing mistake)
and as far as i know a vector does have coordinates...how come it hasn't?

Answer 15

ur confusing it...u mean to say 5 and 7 are the coordinates of a vector..they are called COMPONENTS of a vector

Answer 16

ONLY in the case of a POSITION VECTOR, the components of a vector become the coordinates of a point..understand?

Answer 17

\[\tan x=7/5\]
\[x = \tan^{-1} (7/5)\]

\[\tan x=8/5\]
\[x = \tan^{-1} (8/5)\]

is this the right format?

Answer 18

Hmmm...:(:(:( we call them coordinates as well :(:(
Sorry my fault :( :)

Answer 19

im looking at finding the direction, btw

Answer 20

the first ones right
@angela: no prob, my fault

Answer 21

Thank You.