Question

Given that P = (-5, 5) and Q = (-13, 6), find the component form and magnitude of 2vector PQ.
MEDALS!!!

Answer 1

is it <-16, 2>, square root of 130

Answer 2

component form is correct, magnitude is little off.

\[|2PQ| = 2*\sqrt{(-8)^2 + 1^2} = 2 \sqrt{65}\]

Answer 3

There are two answers with that component form:
one of my answers is <-16, 2>, square root of 130
and the other is <-16, 2>, square root of 260.
Which would be correct?
the first one, right?

Answer 4

square root of 260

Answer 5

whys that? thank you

Answer 6

so the correct answer is <-16, 2>, square root of 130

Answer 7

the options are like this
component, magnitude?

Answer 8

because if that's the case then <-16, 2>, square root of 260 is correct

Answer 9

Okay thank you!

Answer 10

2√65 = √4 x √65 = √4x65 = √260