1.   What are the coordinates of the midpoint of the segment with endpoints C(2, -4, 6) and D(7, 2, -5)?
    A. (9, -2, 1) B. (5, 6, -11)
    C. (-2.5, -3, 5.5) D. (4.5, -1, 0.5)
    Hint

  2.   Find the midpoint of the line with endpoints of (-4, -2, 4) and (3, 7, 2).
    A. (-4, 2, 3) B. (-0.5, 2.5, 3)
    C. (-1, 4, 2) D. (-3.5, -4.5, 1)
    Hint

  3.   One airplane has coordinates of (15, 25, 62) and a second airplane has coordinates of (2, -14, 92). How far apart are the two planes?
    A. 19.1 B. 155.2
    C. 146.8 D. 50.9
    Hint

  4.   Determine the distance between A(4, 14, 8) and B(1, 2, -1). Round to the nearest tenth.
    A. 4.9 B. 15.3
    C. 5.3 D. 18.2
    Hint

  5.   Find the midpoint of the segment with endpoints P(0, 0, 4) and Q(0, -1, 6).
    A. (0, -0.5, 5) B. (0, -1, 10)
    C. (0, 0.5, -1) D. (0, -2, 20)
    Hint



Glencoe
The McGraw-Hill Companies