Did I do this right? #15 ?

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

5/6+7/8what is the answer sealsdbdbshd