1.   Determine whether the graphs of the pair of equations
2x + 3y = 6 and 4x + 6y = 5
are parallel, coinciding, or neither.
    A. all are correct B. coinciding
    C. parallel D. neither
    Hint

  2.   Which is the graph of the inequality y |x - 3|?
    A. B.
    C. D.
    Hint

  3.   Find the values of x and y for which the matrix equation
is true.
    A. x = -3, y = 1 B. x = 1, y = -3
    C. x = -1, y = -3 D. x = -3, y = -1
    Hint

  4.  
    A. B.
    C. D.
    Hint

  5.   State the number of complex roots of the equation x4 - 3x2 - 4 = 0.
    A. 2 B. 3
    C. 1 D. 4
    Hint

  6.   Find the roots of x3 + 2x + 3 = 0.
    A. B. -1, 2
    C. D. 1, -2
    Hint

  7.   If find
    A. B.
    C. D. 7
    Hint

  8.   In given a = 22, b = 39 and c = 19, find B.
    A. about 126.0° B. about 54.0°
    C. about 144.0° D. about 36.0°
    Hint

  9.   Change radians to degree measure.
    A. -135° B. 145°
    C. -145° D. 135°
    Hint

  10.   A bicycle wheel is 30 inches in diameter. If the wheel turns at a constant rate of 3 revolutions per second, what is the linear speed in miles per hour of a point on the tire?
    A. about 16.1 mph B. about 18.4 mph
    C. about 19.5 mph D. about 13.7 mph
    Hint

  11.   Determine if the function is periodic. If so, state the period.
   
    A. yes; 4 B. no
    C. yes; 2 D. yes; 1
    Hint

  12.   Find the magnitude of for T(4, 0, -6) and M(5, -1, 0).
    A. B.
    C. D. 6
    Hint

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

  14.   Find the polar coordinates of R(-5, -7).
    A. (8.60, 0.95) B. (4.90, 4.09)
    C. (4.90, 0.95) D. (8.60, 4.09)
    Hint

  15.   Simplify the expression (5 2i) (2 7i).
    A. 3 9i B. 7 9i
    C. 3 + 5i D. 7 + 5i
    Hint

  16.   Determine the intervals on which the function f(x) = x3 + x2 + x is increasing and the intervals on which the function is decreasing.
    A. increasing for x < 0 and x > 0
    B. increasing for x < 0 and decreasing for x > 0
    C. decreasing for all x
    D. increasing for all x
    Hint

  17.   Determine the slant asymptote for f(x) = .
    A. y = -x + 3 B. y = 4
    C. y = x + 4 D. y = x + 3
    Hint

  18.   || = 14, || = 9, and . Find ||.
    A. 5 B. 17
    C. 126 D. 23
    Hint

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

  20.   Find the principal fourth root of 256i. Leave the result in polar form.
    A. B. 4
    C. 4 (cos 0 + i sin 0) D.
    Hint