document.write( "Question 1209384: True or false: the points (4,2) (8,10) and (11,16) are collinear \n" ); document.write( "
Algebra.Com's Answer #848729 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Label the points as A,B,C in any order you prefer. \n" ); document.write( "A = (4,2) \n" ); document.write( "B = (8,10) \n" ); document.write( "C = (11,16)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let's find the slope of line AB. \n" ); document.write( "m = (y2 - y1)/(x2 - x1) \n" ); document.write( "m = (10 - 2)/(8 - 4) \n" ); document.write( "m = 8/4 \n" ); document.write( "m = 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Do the same for line BC \n" ); document.write( "m = (y2 - y1)/(x2 - x1) \n" ); document.write( "m = (16 - 10)/(11 - 8) \n" ); document.write( "m = 6/3 \n" ); document.write( "m = 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Lines AB and BC have the same slope, so the three points are collinear. \n" ); document.write( "Collinear points are on the same straight line. \n" ); document.write( "You can use graphing tools like Desmos and GeoGebra to verify. \n" ); document.write( "The equation of the line that goes through all three points is y = 2x-6\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer: True \n" ); document.write( " \n" ); document.write( " |