1.   State the domain of the function
    A. all real numbers except 3 B. all real numbers except 0
    C. all real numbers except
0 and 3		 D. all real numbers except
0, 1, and 3
    Hint
  2.   Given f(x) = x2 + 1 and g(x) = 2x - 1, find (f - g)(x).
    A. x2 - 2x + 1 B. x2 + 2x
    C. x2 - 2x + 2 D. x2 - 2x - 1
    Hint
  3.   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. 47.5 or about 48 people per year B. 4750 people per year
    C. 47,500 people per year D. 475 people per year
    Hint
  4.   Using the equation y = 50x + 50, predict y when x = 6.
    A. 400 B. 250
    C. 350 D. 300
    Hint
  5.   Use a graphing calculator to find the equation of the regression line.
   
    A. y = 12x - 23,947 B. y = 2x - 25
    C. y = x - 576 D. y = 23x - 21,000
    Hint
  6.   Which is the graph of the inequality x > -2?
    A. B.
    C. D.
    Hint
  7.   An automobile manufacturer produces two kinds of cars--the Bobcat x and the Lion y. The company must always produce twice as many Bobcats as Lions and at least 300 cars but no more than 1200 cars per day. Model this situation algebraically.
    A. 300 x + 2y 1200 and x = 2y
    B. 300 x + y 1200 and x = 2y
    C. 300 x + 2y 1200
    D. 300 2x + y 1200
    Hint
  8.   If you solve the following system of equations by elimination, which of the following is the best choice for the first step?

2x + y - z = 3
x + y + z = 5
x - 2y + z = 2
    A. Subtract the second and third equation to eliminate the z variable. B. Add the first and second equations to eliminate the z variable.
    C. Both methods will work. D. Neither method will work.
    Hint
  9.  
    A. B.
    C. D.
    Hint
  10.   Triangle ABC has vertices A(7, 2), B(3, -1), and C(1, 4). Find the image of the triangle after a reflection over the x-axis.
    A. A'(7, -2), B'(-1, 3),
C'(-1, -4)		 B. A'(-7, -2), B'(-3, 1),
C'(-1, -4)
    C. A'(2, 7), B'(-1, 3), C'(4, 1) D. A'(7, -2), B'(3, 1), C'(1, -4)
    Hint
  11.   Find the image of after Rot90 · Ry-axis if the vertices are
A(2, -3), B(6, -3), and C(2, 5).
    A. A'(3, -2), B'(3, -6),
C'(-5, -2)		 B. A'(3, 2), B'(3, 6), C'(5, -2)
    C. A'(-3, 2), B'(-3, 6),
C'(5, 2)		 D. A'(-3, -2), B'(-3, -6),
C'(-5, -2)
    Hint
  12.   What are the vertices of the triangle formed?
   
    A. (100, 400), (400, 500), and (100, 800)
    B. (100, 400), (500, 400), and (100, 800)
    C. (100, 400), (500, 400), and (800, 100)
    D. (100, 400), (400, 500), and (800, 100)
    Hint
  13.   Choose the graph of y < 2 - |x - 1|.
    A. B.
    C. D.
    Hint
  14.   Locate the extrema for the graph of y = f(x).
   
    A. The extrema are (-2, 1),
(1, -1) and (4, 3).		 B. The extrema are (-2, 1) and (1, -1).
    C. The extrema are (-2, 1) and (4, 3). D. The extrema are (-1, 1) and (4, 3).
    Hint
  15.   Which equation has an undefined slope?
    A. y = 4x B. y = 4x + 2
    C. y = 4 D. x = 4
    Hint
  16.   Choose the best method to solve the system of equations x + y = 2
and y = 3x - 4.
    A. Eliminate x B. Eliminate y
    C. Substitution D. Graphing
    Hint
  17.   Solve the system of three equations by elimination:

5x + 2y - 3z = 10
2x - 2y + 4z = 6
x - y + 2z = 3
    A. infinite solutions B. no solution
    C. (2, -5, 3) D. (3, 4, 2)
    Hint
  18.  
    A. B.
    C. D. impossible
    Hint
  19.   Find the inverse of .
    A. B.
    C. 0 D. does not exist
    Hint
  20.   Locate the extrema for the graph y = f(x).
   
    A. There is an inflection point at (2,2)
    B. There is a relative minimum at (4,4) and a relative maximum at (0,0)
    C. There is a relative maximum at (4,4) and a relative minimum at (0,0)
    D. There is an absolute maximum at (4,4) and an absolute minimum at (0,0)
    Hint

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