1.   The revenue for the sale of x objects is r(x) = 8x. The cost of manufacturing x objects is c(x) = 0.5x + 300. Write the profit function.
    A. 8.5x + 300 B. 8.5x - 300
    C. 7.5x + 300 D. 7.5x - 300
    Hint

  2.   Jane is opening a home-based business. She determined that she will need $4500 to buy a computer and supplies to start. She expects expenses for each following month to be $800. Write an equation that models the total expense y after x months.
    A. y = 800x + 4500 B. y = 4500x - 800
    C. y = 800x - 4500 D. y = 4500x + 800
    Hint

  3.   Which is the graph of the inequality x + 2y - 2 0?
    A. B.
    C. D.
    Hint

  4.   Which is the graph of the inequality y |x - 3|?
    A. B.
    C. D.
    Hint

  5.   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

  6.   Which of the following shows the system of equations using a matrix equation?
   
    A. B.
    C. D.
    Hint

  7.   Which is the graph of f(x) = x2 - 3 and its inverse?
    A. B.
    C. D.
    Hint

  8.   Suppose y varies directly as x and y = 13 when x = 7. Find the constant of variation and write an equation.
    A. k = and y = x B. k = and y = 13 · 7x
    C. k = and y = x D. k = and y = 13 · 7x
    Hint

  9.   In the equation x3 + x2 + 4x + 4 = 0, how many times does the graph of the related function cross the x-axis?
    A. 0 B. 2
    C. 3 D. 1
    Hint

  10.   Solve the equation 2x2 -x + 4 = 0 by any method.
    A. i B. i
    C. 1 i D. i
    Hint

  11.   Determine between which consecutive integers the real zeros of
f(x) = x4 - 4x2 + x - 3 are located.
    A. between -2 and -1 and between 2 and 3 B. between -3 and -2 and between 5 and 6
    C. between -3 and -2 and between 2 and 3 D. between -4 and -3 and between 3 and 4
    Hint

  12.   Approximate the real zeros of the function f(x) = 2x2 + 4x + 1 to the nearest tenth.
    A. -1.8 and -0.2 B. -1.7 and -0.3
    C. -1.8 and -0.4 D. -1.6 and -0.2
    Hint

  13.   Solve = 3.
    A. 3 B. -1
    C. 2 D. 2, 3
    Hint

  14.   Which equation has an undefined slope?
    A. y = 4x + 2 B. x = 4
    C. y = 4x D. y = 4
    Hint

  15.   Determine two points that appear to represent the data in the scatter plot. Then find and interpret the slope.
   
    A. Paul's test scores improve an average of 15 points with each test.
    B. Paul's test scores are neither increasing nor decreasing.
    C. Paul's test scores improve an average of 5 points with each test.
    D. Paul's test scores improve an average of 3 points with each test.
    Hint

  16.   Find the inverse of .
    A. does not exist B.
    C. D. 0
    Hint

  17.   Complete the graph so it is symmetric about the origin.
   
    A. B.
    C. D.
    Hint

  18.   Which is an odd function?
    A. B.
    C. D.
    Hint

  19.   Which is the graph of y ?
    A. B.
    C. D.
    Hint

  20.   Locate the extrema for the graph y = f(x).
   
    A. There is a relative minimum at (4,4) and a relative maximum at (0,0)
    B. There is an inflection point at (2,2)
    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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