1.   Graph the point .
    A.
    B.
    C.
    D.
    Hint

  2.   Graph the polar equation r = 2.5.
    A.
    B.
    C.
    D.
    Hint

  3.   The graph of is a ______.
    A. circle B. rose
    C. cardioid D. spiral of Archimedes
    Hint

  4.   Write the polar equation in rectangular form.
    A. x2 + y2 = 4x B. x2 + y2 = 2x
    C. x + y = 2x2 D. x + y = 4x
    Hint

  5.   Write the equation 3x + 4y = 9 in polar form.
    A. B.
    C. D.
    Hint

  6.   Write the equation 3x - 8y = -4 in polar form. Round to the nearest degree.
    A. B.
    C. D.
    Hint

  7.   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

  8.   Find .
    A. B.
    C. D.
    Hint

  9.   Find . Express the result in rectangular form.
    A. 1024 B. 1024i
    C. -1024i D. -1024
    Hint

  10.   Which equation could represent a lemniscate?
    A. r = 4 sin 2
    B.
    C. r = 4 cos 4
    D.
    Hint

  11.   Write the rectangular equation x2 + (y + 6)2 = 36 in polar form.
    A. r = -6 sin B. r = 6 sin
    C. r = 12 sin D. r = -12 sin
    Hint

  12.   Simplify (3 + 4i) + (5 – 7i).
    A. 8 - 3i B. -4 + 9i
    C. 7 - 2i D. 15 - 28i
    Hint

  13.   What is the complex conjugate of a - bi, if a and b are real numbers?
    A. a - bi B.
    C. a2 + b2 - abi D. a + bi
    Hint

  14.   Evaluate | 5 – 2i |.
    A. B. 29
    C. D. 21
    Hint

  15.   Find the product 3 (cos 2.8 + i sin 2.8) · 5 (cos 0.6 + i sin 0.6). Express the answer in rectangular form, approximating a and b to the nearest hundredth.
    A. -0.87 + 7.95i
    B. -14.50 - 3.83i
    C. -8.83 + 12.13i
    D. -1.63 + 14.91i
    Hint

  16.   Find the product . Express the solution in rectangular form.
    A. -3 B. 3
    C. 0 D.
    Hint



Glencoe
The McGraw-Hill Companies