Identify the conic section that the polar equation represents. Describe the location of a directrix from the focus located at the pole.r = 
A. parabola; The directrix is 1 unit(s) above the pole at y = 1.
B. parabola; The directrix is 1 unit(s) to the right of the pole at x = 1.
C. parabola; The directrix is 1 units below the pole at y = -1.
D. parabola; The directrix is 1 unit(s) to the left of the pole at x = -1.
Answer: D
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Solve the problem.Find a curve through the origin in the xy-plane whose length from x=0 to x=1 is 
A. y = x2
B. y = ex -1
C. y = 
ex/2 - 
D. y = 
ex/2
Factor the trinomial completely.3x3 + 12x2 - 36x
A. 3x(x - 6)(x + 2) B. 3x(x + 6)(x + 2) C. 3x(x - 6)(x - 2) D. 3x(x + 6)(x - 2)
Solve the equation for y.x - 5y = 4
A. y = x - 
B. y = 5x - 4
C. y = 
x - 
D. y = 
x - 4
A poker hand consists of five cards from a standard deck of 52. Find the number of different poker hands of two of a kind (two of one denomination and three of different denominations). ? __________ hands
Fill in the blank(s) with the appropriate word(s).