Hi,        

Letting y represent the amount of the fine, and x the number weeks late

Write as we Read

  y = .5x   (amount in dollars for the fine)

Using the standard slope-intercept form for an equation of a line y = mx + b

  where m is the slope and b the y-intercept.  

  slope m = .5 = 1/2  

y-intercept (when x=0) is Pt(0,0)

x-intercept (when y = 0) is Pt (0,0)

Note: slope of the line: as y increases/decreases by 1, x increases/decreases by 2



 

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