1.   Use Cramer's rule to find the value of x in the system of equations.


    A. B.
    C. D.
    Hint

  2.   Which equation has a graph perpendicular to the graph 3y = 2x - 9?
    A. y = 2x + 5 B. 3x + 2y = 7
    C. 2x + 3y = 4 D.
    Hint

  3.   Use substitution to solve the system of equations given below.
    A. (-12, -10) B. infinitely many solutions
    C. no solution D. (-10, -12)
    Hint

  4.   Use elimination to solve the system of equations shown below.
2x - 4y = -5
3x + 4y = -15
    A. B.
    C. D.
    Hint

  5.   Use elimination to solve the system of equations given below.
3x - 2y = 4
2x + y = -2
    A. (0, -2) B.
    C. D.
    Hint

  6.   Write the slope-intercept form of an equation for the line that passes through (-8, -1) and is parallel to the graph of
    A. B.
    C. D.
    Hint

  7.   Solve the system –2x – 4y = 7, 3x + 5y = 9.
    A. B.
    C. (71, –39) D.
    Hint

  8.   Solve the system of equations given by y = 2x + 2 and .
    A. (4, -6) B. (-3, -4)
    C. no solution D. infinitely many solutions
    Hint

  9.   Solve the system of equations given by 5x – 2y = -6 and 15x – 6y = 6.
    A. no solution B. (1, 1)
    C. (-2, -2) D. infinitely many solutions
    Hint

  10.   Use substitution to solve the system of equations given by x – 4y = 24 and 3x – 4y = 16.
    A. (10, 3.5) B. (-4, 7)
    C. (10, -3.5) D. (-4, -7)
    Hint

  11.   Which point is in the solution set of and y > -2x – 1.
    A. (-2, 8) B. (-2.8, 4.6)
    C. (-6, 5) D. (0, 3)
    Hint

  12.   Which point is not in the solution set of y < 7x + 6 and y < -7x + 6.
    A. (-1, 6) B. (2, -15)
    C. (1, -5) D. (0, 2)
    Hint

  13.   A geometrical representation of a map is called a ______?______.
    A. directed graph B. coordinate plane
    C. chart D. pattern
    Hint

  14.   Using the directed graph, how many different routes are there to get from the Boston plant to the Worcester plant in exactly two transfers?
   
    A. 2 B. 1
    C. 3 D. 4
    Hint



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