
Math Help Speed = Slope Line Graphs Game LCRD4 Tips:  The average Speed from a point P to a point Q on a TimeDistance graph or grid is calculated as the Speed = (change in Distance)/(change in Time) = slope PQ.  The Speed from P(1, 80) to Q(3,120) is calculated as (12080)/(31) = 40/2 = 20 km/h.  The slope (rate or speed) from a point P(2,3) to a point Q(1,4) on an xy graph is calculated as the (rise)/(run) = (4(3))/(1(2)) = (7)/(3).  It may take a minute to load the game at dialup speeds.  The game can be played using the mouse by itself or using the keyboard by itself.  If the game doesn't respond to keyboard input, click inside the game area to reset the game's focus.  Adjust the game's speed by pressing the + or  key repeatedly. 
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