What is the mean absolute deviation of 12 4 6 12 10 8 4 4

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.

Write an algebraic expression for the word expression the quotient of c and 8

Me with this one question, and i'll upvote the brainliest answer