Salami and More Deli sells a $6$-foot sandwich for parties. It weighs $8$ pounds. Assume the weight per foot is constant.  

1. How much does a sandwich $0$ feet long weigh?

   Answer (a):

   $0$ pounds

2. 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.

   Step (b):

   Graph starting with the point where $x=0$

   Answer (b):

   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.

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

   Hint (c):

   What is the value of $y$ when $x=1$?

4. Write a proportion to find the length of a $12$-pound sandwich.

   Step (d):

   Compare sandwich length and height.

   $\frac{6}{8}=\frac{\it x}{12}$

   Answer (d):

   $9$ feet