Answer:
- y = 371.17×1.15^x
- 1135 in month 8
Explanation:
You want an exponential regression function for the data in the table.
a. Exponential regression
A regression function of most any kind can be found using a graphing calculator or spreadsheet. The attachment shows the function is approximately ...
y = 371.17 × 1.15^x
where y is the number sold, and x is the month.
b. Number sold
Using x=8, the predicted number sold for month 8 is ...
y = 371.17 × 1.15^8 ≈ 1135.4175 ≈ 1135
Sales for month 8 will be about 1135.