To find the rate of change between Wednesday and Friday, we need to calculate the change in the number of customers from Wednesday to Friday, and then divide that by the number of days between those two days.
-
First, find the number of customers on Wednesday and Friday:
- Wednesday: 425 customers
- Friday: 387 customers
-
Calculate the change in the number of customers: \[ \text{Change in customers} = \text{Customers on Friday} - \text{Customers on Wednesday} = 387 - 425 = -38 \]
-
Since there are 2 days between Wednesday and Friday, the rate of change can be calculated as: \[ \text{Rate of change} = \frac{\text{Change in customers}}{\text{Number of days}} = \frac{-38}{2} = -19 \]
Therefore, the rate of change between Wednesday and Friday is \(-19\) customers per day.