1.   The system of equations on the graph shown is
   
    A. consistent and independent.
    B. inconsistent.
    C. consistent.
    D. consistent and dependent.
    Hint

  2.   What is the first step in solving the system of equations using the elimination method?


    A. Add the equations.
    B. Solve the first equation for x.
    C. Multiply the second equation by 2.
    D. Subtract the second equation from the first equation.
    Hint

  3.   Solve the system of equations by using the elimination method.


    A. (12, -2) B. (34, -13)
    C. (4, 2) D. (2, 3)
    Hint

  4.   Choose the graph that shows the solution to the system of inequalities and
    A. B.
    C. D.
    Hint

  5.   Which is not a point at which a maximum or minimum value of a function could occur for the feasible region?
   
    A. (0, 3) B. (-3, 6)
    C. (-3, 0) D. (1, 5)
    Hint

  6.   A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn?
    A. $3.30 B. $1.80
    C. $4.55 D. $4.80
    Hint

  7.   Determine which ordered triple is a solution of the system of equations.



    A. (1, -2, 6) B. (0, 1, -14)
    C. (0, 0, 11) D. (-1, 2, -16)
    Hint

  8.   The Waxmans just opened a carpet store. Their startup costs were $5000, and their cost of carpet is $8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for $18 per square yard?
    A. 192 square yards B. 278 square yards
    C. 500 square yards D. 50 square yards
    Hint

  9.   Which of the following is not a vertex of the figure formed by
    A. B. (6, 4)
    C. (2, –1) D. (0, 2)
    Hint

  10.   Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5.
    A. no solution B. (-3, 1, 7)
    C. infinite solutions D.
    Hint



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