1.   Solve 18 + a = 36.
    A. -18 B. 54
    C. 18 D. -2
    Hint

  2.   Solve 3 < 2t - 1 < 15.
    A. {t | 4 < t < 16} B. {t | 2 < t < 16}
    C. {t | 3 < t < 8} D. {t | 2 < t < 8}
    Hint

  3.   Solve
    A. B.
    C. D.
    Hint

  4.   Graph the solution set of |3y + 9| > 12.
    A.
    B.
    C.
    D.
    Hint

  5.   Write in standard form where A, B, and C are integers whose greatest common factor is 1.
    A. 3x - 8y = 16 B.
    C. 3x - 8y = 2 D. 3x + 8y = 16
    Hint

  6.   A best-fit line drawn on a scatter plot ________
    A. always has a positive slope.
    B. is a line that goes through every data point.
    C. approximates the linear relationship of data points.
    D. must be drawn through the first and last data points.
    Hint

  7.   If f(x) = [2x - 1], find f(5.4).
    A. 9 B. 9.8
    C. 10 D. 8
    Hint

  8.   If g(x) = |x + 3|, find g(-7).
    A. 10 B. 4
    C. -7 D. -4
    Hint

  9.   What is true about the system and
    A. The system has infinitely many solutions.
    B. The system is consistent and dependent.
    C. The system is inconsistent.
    D. The system is consistent and independent.
    Hint

  10.   Use the substitution method to solve m - n = 7 and 3m + 2n = 6.
    A. B. (-5, 2)
    C. (4, -3) D. (-3, -10)
    Hint

  11.   A feasible region has vertices at (4, 6), (-2, 3), (2, -2), and (3, 1). At which point is the maximum value of the function f(x, y) = 2x + y?
    A. f(3, 1) B. f(4, 6)
    C. f(2, -2) D. f(-2, 3)
    Hint

  12.   Find the value of 63.
    A. 18
    B. 216
    C. 36
    D. 729
    Hint

  13.   Solve the system of equations.



    A. no solution B. (0, -2, 7)
    C. (1, 1, 2) D. infinite number of solutions
    Hint

  14.   Find [6,3,-1].
    A. B. [3 3 -1]
    C. D.
    Hint

  15.  
    A. B. [10 37]
    C. D.
    Hint

  16.   Solve x + 7 > 13.
    A. {x | x 20} B. {x | x > 6}
    C. {x | x < 13} D. {x | x > 20}
    Hint

  17.   Solve the inequality | f | > 4.
    A. {f | f > -4 or f < 4}
    B. {f | -4 < f < 4}
    C. {f | -4 > f > 4}
    D. {f | f < -4 or f > 4}
    Hint

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

  19.   What are the solutions to the system y + 2x – 5z = 4, –2y – 4x + 10z = 8, 3y + x – 3z = 5?
    A. infinite B. (2, 2, –2)
    C. no solution D. (2, 2, 1)
    Hint

  20.   Solve the system of equations 7x – 14y =4, 3x – 6y =17.
    A. (3, –2) B. no unique solution
    C. (2, 1) D. infinite solutions
    Hint



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