Question

HELP! what is the projection of (2 5) into (1 3)?
A. 0.7( 2,4)
b.0.7(3,1)
C.1.3(3,1)
d. 1.3(2,4)
PRECALCULUS

Answer 1

ANYONE?

Answer 2

@dan815

Answer 3

Something seems wrong. I'm getting an answer that isn't listed

the two vectors are (2,5) and (1,3) right?

Answer 4

yes @jim_thompson5910

Answer 5

I'm getting (1.7, 5.1) and I don't see how to rearrange that into any of the answer choices. So I'm thinking there may be a typo somewhere.

Answer 6

can you take a screenshot of the whole problem?

Answer 7

Ah, its on vectors Precalculus

Answer 8

yes @jim_thompson5910

Answer 9

ok post the screenshot please

Answer 10

@jim_thompson5910

Answer 11

the numbers are different as you posted

Answer 12

but that's fine

Answer 13

The second point is (3,1) and not (1,3).

Answer 14

yeah, I tired. Sorry @jim_thompson5910 This problem stresses me @mathmate

Answer 15

and the first one is (3,4) !

Answer 16

anyways, you do have the correct answer though, so that's good news

I'm getting (3.9, 1.3) which is equivalent to what you got

Answer 17

Nope, I just know its not 0.7(2,4) @jim_thompson5910 Are you sure?

Answer 18

yeah I'm using geogebra to get this

Answer 19

Ah, its precalculus and its hard @jim_thompson5910

Answer 20

Answer was c, so close thanks @jim_thompson5910