As a data scientist of a company, you want to analyze thefollowing data collected by your company which relates theadvertising expenditure A in thousands of dollars to total sales Sin thousands of dollars. The following table shows thisrelationship
| Advertising Expenditure (A) | Total Sales (S) |
| 18.6 | 312 |
| 18.8 | 322 |
| 18.8 | 333 |
| 18.8 | 317 |
| 19 | 301 |
| 19 | 320 |
| 19.2 | 305 |
Using Advertising expenditure (A) as the domain and Total Sales(S) as the range, the data is not a function because the value 18.8and 19 appear in the domain more than once with a differentcorresponding value of the range each time.
--Interpret the slope and y-intercept of this equation.
--Express this equation as a function S of A and find itsdomain.
--Predict the sales if the advertising expenditure is$25000.
