Why is #38 9? I cant understand why it's correct

4 Questions 37 and 38 refer to the following Based on the line of best fit, the estimated value of a information. 6-year-old computer is k thousand dollars, where k Value of 19 Mainframe Computers is an integer. What is the value of k? 30 25 20 Value of computer (thousands of dollars) 15 Age of computer (years) What is the number of computers for which the line A large company has 19 mainframe computers of a of best fit predicts a value less than the actual value? certain class. The scatterplot above shows the value and age for each of the 19 computers. A line of best fit for the data is also shown