Tree Height The graph shows the relationship between the
height of a tree and its age in years.
11
10
What is the unit rate of growth for the tree?
9
0.25 feet per year
8
7
0.5 feet per year
6
Height (ft)
5
2 feet per year
4
3
3 feet per year
2
1
0
1 2 3 4 5
Age (years)
Ne