1.   State the domain and range of the relation.
   
    A. All real numbers are included in the domain, and 3 is included in the range. B. All real numbers are included in the domain and the range.
    C. 3 is included in the domain, and 3 is included in the range. D. 3 is included in the domain, and all real numbers are included in the range.
    Hint

  2.   Describe the graph.
   
    A. neither a relation nor a function B. relation but not function
    C. relation and function D. not a relation but a function
    Hint

  3.   Evaluate the function f(x) = 2x3 - 6x + 1 for f(-2).
    A. 5 B. -35
    C. -3 D. 37
    Hint

  4.   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

  5.   Rewrite the equation 3x + y = 7 in slope-intercept form.
    A. y = -3x + 7 B. y = 7x + 3
    C. y = 3x - 7 D. y = -3x - 7
    Hint

  6.   Write an equation in slope-intercept form for the line with a slope -3 and passes through the point (4, 2).
    A. y = -3x + 2 B. y = -3x + 14
    C. y = -3x + 4 D. y = -3x - 8
    Hint

  7.   Determine whether the graphs of the pair of equations
2x + 3y = 6 and 4x + 6y = 5
are parallel, coinciding, or neither.
    A. neither B. all are correct
    C. parallel D. coinciding
    Hint

  8.   Write the standard form of the equation of the line that passes through the point (-1, 3) and is parallel to the graph of 2x - 7y + 1 = 0.
    A. 2x + 7y + 23 = 0 B. 2x + 7y - 23 = 0
    C. 2x - 7y - 23 = 0 D. 2x - 7y + 23 = 0
    Hint

  9.   Write the standard form of the equation of the line that passes through the point (-4, -2) and is perpendicular to the graph of 3x - 2y + 9 = 0.
    A. 2x> + 3y - 14 = 0 B. 2x + 3y + 14 = 0
    C. 3x - 2y - 14 = 0 D. 3x - 2y + 14 = 0
    Hint

  10.   Which is a graph of f(x) = |3x| - 1?
    A. B.
    C. D.
    Hint

  11.   State the domain and range of the relation.
   
    A. The domain includes just positive real numbers. The range includes all real numbers.
    B. The domain and the range include all real numbers.
    C. The domain includes all real numbers. The range includes all positive real numbers.
    D. The domain includes negative real numbers. The range includes all real numbers.
    Hint

  12.   Given f(x) = x-5 and g(x) = x2+ 3,find (f · g)(x).
    A. x3 –5x2 +3x -15 B. x3 +5x2 +3x-15
    C. 4x3 –2x D. x2 –2x-15
    Hint

  13.   Find the first three iterates of the function g(x) = x2 + x for an initial value of x0 = 1.
    A. = 0
= 2
= 4

B. = 2
= 6
= 36

    C. = 2
= 6
= 12

D. = 2
= 6
= 42

    Hint

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

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

  16.   Write the equation of the line that is parallel to 2x - 3y - 15 = 0 and that passes through the point (3,4).
    A. 2x - 2y + 6 = 0 B. 2x + 3y + 6 = 0
    C. 2x - 3y + 6 = 0 D. 2x + 5 - 3 = 0
    Hint

  17.   What type of relationship does the scatter plot suggest?
   
    A. a linear relationship with a negative correlation
    B. no correlation
    C. a linear relationship with a positive correlation
    D. no linear relationship
    Hint

  18.   Which of the following graphs represents the function:

    A. B.
    C. D.
    Hint

  19.   What is the value of y when x = 2?
   
    A. undefined B. 0
    C. 1 D. 2
    Hint

  20.   A bank charges a $10 fee if the account balance is less than $200. If the balance is in between $200 and $500 there is a $5 fee. If at least $500 is in the account, there is no fee. What type of function best represents this situation?
    A. absolute value function B. piecewise function
    C. greatest integer function D. step function
    Hint



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