Algebra.Com's Answer #677748 by math_helper(2461)![\"\"](\"/images/stars/stars-13.gif\")  
You can put this solution on YOUR website!
A vector of the form is taken to be \"from the origin\" to the point (x,y), and in that direction.\r
\n" );
document.write( "\n" );
document.write( "Magnitude =  =  =  \r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "—
\n" );
document.write( "Direction can be found from  —> 
\n" );
document.write( "=  . There is another step: we must keep in mind that the point (-3.5,-12) is in quadrant 3
\n" );
document.write( "while is in quadrant 1 (because positive angles are measured counter clockwise from +x-axis), so we must add  (the period of the tan() function) to get the proper angle:  as measured CCW from the +x-axis. \n" );
document.write( " |