Problem 11.1.  Which quadrant does point A lie in?

  Problem 11.2.  How many of the plotted points belong to Quadrant II?  

  Problem 11.3.  What are the coordinates of point E?

  Problem 11.4.  Which of the plotted points has coordinates (-2; 4)?

  Problem 11.5.  Which point has an x-coordinate equal to 4?

  Problem 11.6.  Which point has a y-coordinate equal to 5?

  Problem 11.7.  How many points have an x-coordinate equal to -3?

  Problem 11.8.  Which of the plotted points have equal x-coordinates?

  Problem 11.9.  Which of the plotted points have equal y-coordinates?

  Problem 11.10.  Is there a point with equal x- and y-coordinates?