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)\"\" \"About 
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\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
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\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
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\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
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\n" ); document.write( "\n" ); document.write( "Answer: True
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