Find the domain of the rational expression. 
A. {x|x is a real number and x ? 2 and x ? 0}
B. {x|x is a real number}
C. {x|x is a real number and x ? 2}
D. {x|x is a real number and x ? 0}
Answer: A
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The graph of a polar equation is given. Select the polar equation for the graph. 
A. r = -2 cos ? B. r sin ? = -1 C. r = -1 D. r = -2 sin ?
Use the graph of the polynomial function f(x) to solve f(x) = 0.
A. -6, -2 B. -4, 2, 6 C. 2, 4 D. -6, -2, 4
Provide an appropriate response.Which of the following is the correct way to evaluate the expression 
?
A. 3 + 6 ? 5 = 3 + 30 = 33 B. 3 + 6 ? 5 = 30 + 6 = 36 C. 3 + 6 ? 5 = 15 + 30 = 45 D. 3 + 6 ? 5 = 9 ? 5 = 45
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3t, y = t + 1; -2 ? t ? 3
A. y = x2 + 1; for x in -2 ? x ? 2
B. y = 
x + 1; for x in -6 ? x ? 9
C. y = -3x + 1; for x in -? < x < ?
D. y = 
x - 1; for x in -? < x < ?