Question

The table shows the total amount of money in a parking meter at different time intervals after it was repaired.

What was the average rate of change between Hour 3 and Hour 7?

Answer 1

$0.6/hour.

Explanation:

See the table attached.

The table shows the total amount of money in a parking meter at different time intervals after it was repaired.

Now, at time 3 hours, there was $3.75 money.

And at time 7 hours, there was $6.15 money.

So, the average rate of change between Hour 3 and Hour 7 will be

=
`\frac{\textrm {Total inctrease in Money}}{\textrm {Total increase in Time}}`

=
`(6.15 - 3.75)/(7 - 3) = 0.6` dollars per hour. (Answer)