Given that
Find the magnitude.
\
(Apply distance formula)
(Substitute
)
(Product of two same signs is positive)
(Evaluate powers)
(Add:
)
(Use a calculator)
Graph
to determine how to find the direction.Draw a right tringle that has
as its hypotenuse and an acute angle at
.


(Substitute
)
(Simplify)
(Divide)
(Use a calculator)
The direction of
is
or about
.
The magnitude of
is about 2.3 and a direction of about
.