1.   Express the complex number -4 - 3i in polar form.
    A. B.
    C. D.
    Hint

  2.   Express in rectangular form.
    A. B.
    C. D.
    Hint

  3.   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 56.13 N B. about 10.63 N
    C. about 15.67 N D. about 1.09 N
    Hint

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

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