1.   Use the scatter plot to predict the mileage of an engine with 250 horsepower.
   
    A. 10 B. 25
    C. 20 D. 12
    Hint

  2.   What is the slope of the line through the points A(-3, 4) and B(2, -1)?
    A. -3 B. -1
    C. D. 1
    Hint

  3.   Draw the graph of y < 0.5x + 1.
    A. B.
    C. D.
    Hint

  4.   Rectangle DEFG has vertices D(-4, -1), E(-2, -1), F(-2, -4), and
G(-4, -4). Which graph shows the translation image of the rectangle that is 6 units right and 3 units up?
    A. B.
    C. D.
    Hint

  5.   A rotation of 180° counterclockwise or 180° clockwise would be ______.
    A. the same B. different
    C. None of these is correct. D. impossible
    Hint

  6.   Simplify
    A. B.
    C. D.
    Hint

  7.   Find the graph that does not have direct variation.
    A. B.
    C. D.
    Hint

  8.   Find the situation that involves a decreasing linear relationship and has direct variation.
    A. A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second.
    B. An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport.
    C. A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second.
    D. The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours.
    Hint

  9.   Find the table that represents a graph with direct variation.
    A.
    B.
    C.
    D.
    Hint

  10.   What is the equation of a line that has a slope of 4 and passes through (6, 3)?
    A. y = 4x – 7 B. y = 4x – 3
    C. y = 4x – 27 D. y = 4x – 21
    Hint

  11.   Consider the equation xy = 3. What happens to the value of y when x doubles?
    A. y doubles B. y halves
    C. y quarters D. y triples
    Hint

  12.   What is a conjecture?
    A. a ''shot in the dark'' guess that has been proved
    B. an educated guess that has been proved
    C. an educated guess that hasn't been proved yet
    D. a ''shot in the dark'' guess that hasn't been proved yet
    Hint

  13.   What type of relationship does the equation have if its second differences are constant?
    A. constant B. cubic
    C. quadratic D. linear
    Hint

  14.   Tell whether the statement is sometimes true, always true, or never true for positive values of n. If it is sometimes true, state for what value it is true.
4n = 6,561.
    A. sometimes true, n = 7 B. always true
    C. never true D. sometimes true, n = 8
    Hint

  15.   Find a solution to the equation by doing the same thing to both sides.
8p + 14 = 2p – 22
    A. p = 1 B. p = –1
    C. p = –6 D. p = 6
    Hint

  16.   Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
4x(x + 2) = 12
    A. x = 2, x = –2 B. x = 1, x = –3
    C. x = –1, x = –4 D. x = 0, x = –4
    Hint

  17.   Use a graph to solve the system of equations.
y = x2
y = –x + 2
    A. (–2, 1), (1, 4) B. (1, 1), (4, –2)
    C. (–2, 4), (1, 1) D. (4, 1), (1, –2)
    Hint

  18.   What is the scale factor of Figure A to Figure B?
   
    A. 3 B.
    C. 2 D.
    Hint

  19.   Use the projection method to scale this polygon by a factor of .
   
    A. B.
    C. D.
    Hint

  20.   If you want to scale a segment by a factor of 8, how long will the new segment be?
    A. 80% of its original size
    B. 8 times its original size
    C. of its original size
    D. 64 times its original size
    Hint



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