The rate of change is constant in the graph. Find the rate of change. Explain what the rate of change means for the situation.
-1; value drops $1 every year.
100
20 value drops $100 every 3 years.
-100; value drops $100 every year.
-3; value drops $3 every year.

-100/3; value drops $100 every 3 years.

Step-by-step explanation:

If you look at the graph, you can see that it's going down by 100 every three years. 400 drops to 300 on year three, 300 drops to 200 on year six, 200 drops to 100 on year nine, and 100 drops to 0 on year 12.