The graph shows the amount of garbage $G$ (in tons) that has been deposited at a dumpsite $t$ years after new regulations go into effect.

1. Choose two points on the graph and compute the slope, including units.
   The slope is ? tons years tons per year years per ton
2. Explain what the slope measures in this problem. A) The rate at which garbage accumulates
   B) The steepness of the garbage pile
   C) The volume of the garbage
   D) The cost to use the dump site
3. Choose two different points and compute the slope again. Do you get the same value as before?
   The slope is ? tons years tons per year years per ton