document.write( "Question 1106556:  Find the coordinates of point P that divides the segments with the given endpoints in the ratio 2 : 3.
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document.write( "i A(-3, -1) and B(2, 4) iii A(-2, -3) and B(4, 0)
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document.write( "ii A(-4, 9) and B(1, -1) iv A(-6, -1) and B(3, 8) \n" );
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| Algebra.Com's Answer #721591 by greenestamps(13209)     You can put this solution on YOUR website! \n" ); document.write( "The solution by the first tutor is wrong. \n" ); document.write( "Adding 2/3 of the distance between the two endpoints to each of the x and y coordinates of the first endpoint does not give you the coordinates of point P. \n" ); document.write( "Furthermore, if P divides segment AB into two parts in the ratio 2:3, then point P is 2/5 of the distance from A to B -- not 2/3 of the distance. \n" ); document.write( "To find the coordinates of point P in each case, it is much easier to work with the x and y components separately, rather than working with the distance between the endpoints. \n" ); document.write( "i) A(-3,-1) and B(2,4) \n" ); document.write( "The difference in the x coordinates is 5; the difference in the y coordinates is also 5. 2/5 of 5 is 2; so point P is 2 units in the x direction and 2 units in the y direction from A, giving you P(-1,1). \n" ); document.write( "ii) A(-2,-3) and B(4,0) \n" ); document.write( "The difference in the x coordinates is 6; the difference in the y coordinates is 3. 2/5 of 6 is 2.4; 2/5 of 3 is 1.2; so point P is 2.4 units in the x direction and 1.2 units in the y direction from A, giving you P(0.4,-1.8). \n" ); document.write( "The other two cases are worked in the same way.... \n" ); document.write( " \n" ); document.write( " |