What is the value of this expression when x= -6 and y=-1.5?

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.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?