1.   The population of Abnerville was 12,500 people in 1950. In 2000, the population was 250,000. Find the average rate of increase in the population over the 50 year period.
    A. 47,500 people per year B. 475 people per year
    C. 47.5 or about 48 people per year D. 4750 people per year
    Hint

  2.   What type of relationship or pattern does the scatter plot suggest?
   
    A. no pattern B. none of these
    C. a linear relationship whose data have a positive relationship D. a linear relationship whose data have a negative relationship
    Hint

  3.   The equation 2x - y + 3z = 5 represents _____________
    A. none of these. B. a circle.
    C. a plane. D. a line.
    Hint

  4.   Solve |x - 1| - 8 < 3.
    A. {x | 5 < x < 10} B. {x | -8 < x < 10}
    C. {x | -4 < x < 3} D. {x | -10 < x < 12}
    Hint

  5.   Graph y = 1 + .
    A. B.
    C. D.
    Hint

  6.   The function f(x) = 3x2 - x3 has critical points at x = 0 and x = 2. Determine whether each of these critical points is the location of a relative maximum, relative minimum, or a point of inflection.
    A. (0, 0) minimum and (2, 4) maximum B. (0, 0) maximum and (2, 4) minimum
    C. None of these is correct. D. (0, 0) minimum and (2, 4) point of inflection
    Hint

  7.   Graph y = .
    A. B.
    C. D.
    Hint

  8.   The factors of x2 - 8x - 20 = 0 are ____.
    A. (x + 2) and (x - 10) B. (x - 2) and (x - 10)
    C. (x + 2) and (x + 10) D. (x - 2) and (x + 10)
    Hint

  9.   The equation x2 + x - 1 = 0 cannot be solved by ____.
    A. factoring B. using the quadratic formula
    C. completing the square D. graphing
    Hint

  10.   List the possible rational roots of 3x3 + 5x2 - 2x + 1 = 0.
    A. 1, B. ,
    C. , D. 1,
    Hint

  11.   Decompose into partial fractions.
    A. B.
    C. D.
    Hint

  12.   Which is an example of a cofunction relationship?
    A. sin 30° = sin 60° B. sin 30° = cot 60°
    C. sin 30° = tan 60° D. sin 30° = cos 60°
    Hint

  13.   If P = 27° and r = 11, find p.
   
    A. B.
    C. D.
    Hint

  14.   A security light is being installed outside a loading dock. The light is mounted 25 feet above the ground. The light must be placed at an angle so that it illuminates a parking lot. If the end of the parking lot is 125 feet from the loading dock, what should be the angle of depression of the light?
    A. about 11.5° B. about 11.3°
    C. about 78.5° D. about 78.7°
    Hint

  15.   Write an equation in slope-intercept form with a slope of that passes through the point (-3, -5).
    A. B.
    C. D.
    Hint

  16.   How can you tell if two lines are perpendicular?
    A. The slopes are reciprocals. B. The slopes are opposites.
    C. The slopes are opposite reciprocals. D. The slopes are the same.
    Hint

  17.   Ilene analyzed her test scores and determined the equation of the best-fit line was y = 4.25x + 72. Predict her score for the 5th test.
    A. 88.75 B. 98.5
    C. 93.25 D. 72.5
    Hint

  18.  
    A. B.
    C. D. impossible
    Hint

  19.   Given the function f(x) = x2 - 8x + 16, find the inverse.
    A. f -1 = x - 4 B. f -1 = 4
    C. f -1 = x - 2 D. f -1 = (x - 4)2
    Hint

  20.   Graph the function
    A. B.
    C. D.
    Hint



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