1.   Which ordered pair is the solution to the given system of equations?
x - 3y = 9
x - 2y = 5
    A. (3, -2) B. (9, -3)
    C. (-6, 1) D. (-3, -4)
    Hint

  2.   Use the graph below to determine if the given system of equations has one solution, no solution, or infinitely many solutions. If the system has one solution, name it.

   
    A. infinitely many solutions B. one solution at .
    C. one solution at (-6, 0) D. no solution
    Hint

  3.   Graph the system of equations to determine whether it has no solution, infinitely many solutions, or one solution. If the system has one solution, name it.
2x - y = 4
x + 2 y = 2
    A. one solution at (0, 2) B. no solution
    C. infinitely many solutions D. one solution at (2, 0)
    Hint

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

  5.   A long distance phone company has a monthly fee of $7.95 and charges a rate of $0.05 per minute. Another long distance company has a monthly fee of $9.95 and charges a rate of $0.03 per minute. At how many minutes would the two companies have equal charges?
    A. 150 minutes B. 100 minutes
    C. They will never have the same charges. D. 50 minutes
    Hint



Glencoe
The McGraw-Hill Companies