The given points are
.
To find the magnitude.
\
(Apply distance formula)
(Substitute
)
(Product of two same signs is positive)
(Simplify)
(Evaluate powers)
(Add:
)
(Simplify)
Graph
to determine how to find the direction.Draw a right triangle that has
as its
hypotenuse and an acute angle at A.
\

(Substitute
)

(Simplify)

(Use a calculator)
The direction of
is
or about
.
The magnitude of
is about 7.2 and a direction of about
.