Question

Juan starts a new coffee shop. The table shows the coffee sales at his shop for the first 5 days.

What is the average rate of change in the sales per day between the 2nd and 5th day?

Answer 1

The average between the 2nd and 5th day is 237.50

Answer 2

$30/day

Explanation:

average rate of change = (s(b)-s(a))/b-a

where s(b) =$310

s(a) = $220

b= 5

a= 2

average rate of change = (310-220)/(5-2)

average rate of change = 90/3

average rate of change = $30/day