document.write( "Question 390505: The library charges 50 cents a week for a late book. What is the equation for the total fee? What are the variables? What are the x and y intercepts? I am also trying to find the slope of the line. \n" ); document.write( "

Algebra.Com's Answer #276933 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,        
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document.write( "Letting y represent the amount of the fine, and x the number weeks late
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document.write( "Write as we Read
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document.write( "  y = .5x   (amount in dollars for the fine)
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document.write( "Using the standard slope-intercept form for an equation of a line y = mx + b
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document.write( "  where m is the slope and b the y-intercept.  
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document.write( "  slope m = .5 = 1/2  
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document.write( "y-intercept (when x=0) is Pt(0,0)
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document.write( "x-intercept (when y = 0) is Pt (0,0)
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document.write( "Note: slope of the line: as y increases/decreases by 1, x increases/decreases by 2
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