The graph shows the function f(x). what is the function's average rate of change from x = 9 to x = 15? enter your answer in the box.

3/2

Step-by-step explanation:

To find the rate of change

f(x2) - f(x1)

= rate of change

x2-x1

Looking at the graph

f(15) = 12

f(9) = 3

Substituting this into the equation

12-3

15-9

9

6

3/2

The rate of change is 3/2

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.