Answer:
a) Solution
b) Not a solution
c) Solution
d) Not a solution
Explanation:
The solutions to a graphed system of inequalities are found in the region where the shaded areas of the individual inequalities overlap. Points located on a solid boundary line are included in the solution, whereas points located on a dashed boundary line are not included in the solution.
a) Point (0, -5)
Point (0, -5) lies precisely on the solid boundary line of one of the inequalities. As points on solid boundary lines are included in the solution, point (0, -5) is a valid solution to the given system of inequalities.
b) Point (4, 1)
Point (4, 1) is positioned on the dashed boundary line of one of the inequalities. Since points on dashed boundary lines are not included in the solution, point (4, 1) is not a valid solution to the given system of inequalities.
c) Point (6, 1)
As point (6, 1) is located inside the overlapping shaded region, it is a valid solution to the given systems of inequalities.
d) Point (1, -6)
As point (1, -6) is located outside the overlapping shaded region, it is a not a valid solution to the given systems of inequalities.