Question

The table shows the linear relationship between the average height in feet of trees on a tree farm and the number of years
number of years since the trees were planted
1
3
6
11
15
average height(ft)
10
24
45
80
108
Based on the table, write a function to represent this situation
f(x)=

Answer 1

f(x) = 7x + 3

(Reason: slope = (24−10)/(3−1) = 7, and using (1,10): 10 = 7(1)+b → b = 3.)