The graph below shows the number of people subscribing to a
     The graph below shows the number of people subscribing to a sports magazine of increasing popularity.  Find the slope of the line between the two points shown on the graph.  subscriptions/year  Write a sentence that states the meaning of the slope.  For each year, subscribers are   
  
  Solution
slope = (y2 - y1) / (x2 - x1)
slope = (1100 - 300) / (6 - 4)
slope = 800/2
slope = 400
But notice the subscriptions was in thousands...
So, slope is :
 400000 subs/year ---> FIRST ANSWER
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For each year,
 400000
 subscribes are
 INCREASED
This last one may not be right,
 but it should be something that echoes what i wrote

