Juno is taking a taxi. the table represents a linear function and shows the amount she owed after various numbers of miles traveled. is the rate of change 2.25?

I added a screenshot with the missing table


Yes, because the amount owed changes by 2.25 every time the miles change by 1

Explanation:
The rate of change can be referred to as the slope of the function.
The slope can be calculated using the following formula:
slope = 

We will get the slope between each two successive points:
between 1 and 2:
slope = 

between 2 and 3:
slope = 

between 3 and 4:
slope = 

between 4 and 5:
slope = 

We can note that as the miles increase by 1, the amount charged increase by 2.25.
This means that the rate of change is 2.25

Hope this helps :)