document.write( "Question 1111745: Find the perpendicular distance between the line y=(5/13)x + 5 and the origin. \n" ); document.write( "
Algebra.Com's Answer #726756 by math_helper(2461)![]() ![]() You can put this solution on YOUR website! First draw this:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Truncated y = (5/13)x + 5 to form a triangle with the -x axis and +y axis. \n" ); document.write( "d is the distance sought, and is represented by the green line. \n" ); document.write( "— \n" ); document.write( "We know the length of the leg of the triangle that goes along the y-axis is 5 (from y=(5/13)x+5, by inspection the y intercept is 5). \n" ); document.write( "— \n" ); document.write( "d = 5sin(a) \r \n" ); document.write( "\n" ); document.write( "What is a? To find that we need to find (x0,0) which will tell us the angles of the large triangle. \r \n" ); document.write( "\n" ); document.write( "0 = (5/13)x0 + 5 —> x0 = -13 so the length of the triangle along the -x axis is 13.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The angle a is therefore \n" ); document.write( "\n" ); document.write( "d = 5 sin(68.96248897) = \n" ); document.write( "\n" ); document.write( "—————————————— \n" ); document.write( "EDIT 3/10/18 — Thank you tutor KMST for your approach. I think you may have inadvertently wrote 14.6667 as the answer and carried it throughout(?). I noticed only because clearly d < 5. \n" ); document.write( " \n" ); document.write( " |