1.   What is the first step in solving the matrix equation
    A. Multiply each side of the matrix equation by the identity matrix.
    B. Multiply each side of the matrix equation by
    C. Divide each side of the matrix equation by
    D. Find the inverse of
    Hint

  2.   Given that the inverse of the coefficient matrix is , solve the matrix equation .
    A. (-2, 3) B. (2, 4)
    C. (-4, 3) D. (4, 3)
    Hint

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

  4.   Suppose a matrix equation of a system of equations does not have a unique solution. What cannot be true?
    A. adbc ? 0 B. is undefined
    C. D.
    Hint

  5.   Solve the system of equations4x – 2y = 2, –3x + 7y = –29
    A. no solution B. (–2, 5)
    C. (–2, –5) D. (2, –5)
    Hint



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