1.   OBCD is a square. What are the coordinates of D?
   
    A. (0, a) B. (0, 0)
    C. (a, 2a) D. (a, a)
    Hint

  2.   ABCD is a parallelogram. What are the coordinates of C?
   
    A. (b, c) B. (a, c)
    C. (b, a + c) D. (a + b, c)
    Hint

  3.   The circle below has its center at the origin and intersects the x-axis at (a, 0). Which are not the coordinates of another point where the circle intersects an axis?
   
    A. (0, a) B. (0, -a)
    C. (-a, 0) D. (a, a)
    Hint

  4.   is isosceles. What is the x-coordinate of B?
   
    A. 0 B. b
    C. D. a
    Hint

  5.   is equilateral. What are the coordinates of A?
   
    A. B. (-2b, 0)
    C. D.
    Hint



Glencoe
The McGraw-Hill Companies