Choose the correct statement about best-fit lines. a. a best-fit line is close to most of the data points. b. a best-fit line describes the exact coordinates of each point in the data set. c. a best-fit line always has a positive slope. d. a best-fit line must go through at least two of the data points.

a.  A best-fit line is close to most of the data points.

Step-by-step explanation:

Line of best fit is the straight line which represents the data in the best way. This straight line is said to be best if the distances between the data points and the straight line are minimum.

Thus Option (a) is correct.

Option (b) is incorrect as best-fit lines never describe the exact coordinates of the data set.

Option (c) is incorrect as best-fit lines can have positive as well as negative slope.

Option (d) can't be chosen as it is not necessary that line must go through any of the data points.

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

no idea

step-by-step explanation: