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Salami and More Deli sells a -foot sandwich for parties. It weighs pounds. Assume the weight per foot is constant.  

  1. How much does a sandwich feet long weigh?


  1. Draw a graph showing the weight of the sandwich (vertical axis) compared to the length of the sandwich (horizontal axis). Label the axes with appropriate units.

    Graph starting with the point where

    Your graph should show a line with positive slope.
    Units on the vertical axis should be in pounds.
    Units on horizontal axis should be in feet.

  1. Use your graph to estimate the weight of a -foot sandwich.

    What is the value of when ?

  2. Write a proportion to find the length of a -pound sandwich.

    Compare sandwich length and height.


Use the eTool below to help you solve the problem.
Click the link at right for the full version of the eTool: 7-75 HW eTool