SOLUTION: typical heights and wieghts for adult men are in the table below height (in inches) 70 72 74 weight (in pounds) 170 180 190 explain why these data are linear?

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: typical heights and wieghts for adult men are in the table below height (in inches) 70 72 74 weight (in pounds) 170 180 190 explain why these data are linear?      Log On

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Question 134628:
typical heights and wieghts for adult men are in the table below
height (in inches) 70 72 74 weight (in pounds) 170 180 190

explain why these data are linear?
Answer by checkley77(12569) About Me  (Show Source):
You can put this solution on YOUR website!
HERE WE NEED TO FIND THE SLOPES BETWEEN ALL POINTS.
(180-170)/(72-70)=10/2=5
(190-170)/(74-70)=20/4=5
(190-180)/(74-72)=10/2=5
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.