Find the magnitude and describe the direction of the vector [math]\vec{v} = \vec{PQ}[/math] from [math]P\, (7, –2)[/math] to [math]Q\, (1, 1)[/math].
[list=1] [*]Determine the component form of [math]\vec{v}[/math]. [*]Find the magnitude of [math]\vec{v}[/math]. [*]Describe the direction of [math]\vec{v}[/math]. [/list]