1.   The distance between the points with coordinates (-8, 4) and (1, a) is 15 units. Find the value of a.
    A. 8 or 16 B. -8
    C. -8 or 16 D. 8
    Hint

  2.   What is the perimeter of a triangle whose vertices are the points
(–1, 4), (–1, –2), (5, –2)?
    A. B.
    C. D.
    Hint

  3.   Greta and her grandmother planned to attend a downtown play. Greta lives 10 miles south and 4 miles west of downtown, while her grandmother lives 2 miles south and 2 miles east of downtown. If Greta picks up her grandmother on the way (rather than meet her at the play), how many miles does that add to her trip?
    A. 2 B.
    C. D.
    Hint

  4.   What is the midpoint of a segment with endpoints at (-1, 4) and (-3,-2)?
    A. (1, -2) B. (2, 1)
    C. (-2, 1) D. (-1, 2)
    Hint

  5.   What is the midpoint of a segment with endpoints at (5, 6) and (3, 8)?
    A. (7, 4) B. (1, 1)
    C. (4, 7) D. (1, -1)
    Hint



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