Question

Tom closely monitored the balance of his checking account.
Tom's checking account balance
Month Amount
March $68
April $74
May $72
June $74
July $74
According to the table, what was the rate of change between May and June?
$
permonth

Answer 1

To calculate the rate of change between May and June, we can use the formula for the rate of change:

\[
\text{Rate of Change} = \frac{\text{New Value} - \text{Old Value}}{\text{Change in Time}}
\]

In this case:
- The old value (in May) is $72.
- The new value (in June) is $74.
- The change in time between May and June is 1 month.

Now, we can plug the values into the formula:

\[
\text{Rate of Change} = \frac{74 - 72}{1} = \frac{2}{1} = 2
\]

Thus, the rate of change between May and June is **$2 per month**.