Ineed to know if the lines made by those two equations are parallel, perpendicular or neither

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!