The coordinate plane below represents a city. Points A through F are schools in the city.

Part A:Using the graph above, make a system of inequalities that only contains points D and E in the overlapping shaded regions. Explain how the lines will be graphed and shaded on the coordinate grid above.

Part B:Explain how to verify that the points D and E are solutions to the system of inequalities created in Part A.

Part C:Timothy can only attend a school in his designated zone. Timothy's zone is defined by y < 3x 3. Explain how you can identify the schools that Timothy is allowed to attend.