1.   Solve the equation 3x + y + 2i = 12 + xi - yi for x and y, where x and y are real numbers.
    A.
    B.
    C.
    D.
    Hint

  2.   The force on an object is represented by the complex number 8 + 7i, where the components are measured in newtons. What is the magnitude of the force?
    A. about 15.67 N B. about 10.63 N
    C. about 56.13 N D. about 1.09 N
    Hint

  3.   Another name for the complex plane is the _________ plane.
    A. Argand B. Cartesian
    C. rectangular D. polar
    Hint

  4.   Another name for the absolute value of a complex number is the _______________.
    A. real part B. modulus
    C. argument D. amplitude
    Hint

  5.   Express the number in rectangular form.
    A. B.
    C. D.
    Hint