I got so many points, so i wanna give some away!! Becuase I dont want to get flagged awnser this EASY math problem
1 + 9 =

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.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o