document.write( "Question 134628: \r
\n" ); document.write( "\n" ); document.write( "typical heights and wieghts for adult men are in the table below
\n" ); document.write( "height (in inches) 70 72 74 weight (in pounds) 170 180 190\r
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\n" ); document.write( "\n" ); document.write( "explain why these data are linear?
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Algebra.Com's Answer #98576 by checkley77(12844)\"\" \"About 
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HERE WE NEED TO FIND THE SLOPES BETWEEN ALL POINTS.
\n" ); document.write( "(180-170)/(72-70)=10/2=5
\n" ); document.write( "(190-170)/(74-70)=20/4=5
\n" ); document.write( "(190-180)/(74-72)=10/2=5
\n" ); document.write( "BECAUSE THE SLOPE IS 5 FOR ALL LINES THEN THE 3 POINTS ARE ON THE SAME LINE THUS THESE 3 POINTS FORM A LINEAR LINE.\r
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