Did i do this all right and is there anything i should add to it?

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.

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?