Find the oblique asymptote, if any, of the rational function.f(x) = 
A. x = y + 4
B. None
C. y = x + 6
D. y = x - 9
Answer: D
Mathematics
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Use substitution to determine whether the given number is a zero of the given polynomial.-2; f(x) = x4 + 6x2 - 40
A. Yes B. No
Mathematics
Identify and graph the polar equation.r = 4 - 3 cos ? 
A. 
limacon with inner loop
B. 
limacon without inner loop
C. 
limacon with inner loop
D. 
limacon without inner loop
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = t2 + 1, y = t2 - 1
A. y = x2 + 2, x ? 1 B. y = x + 2, x ? 1 C. y = x - 2, x ? 1 D. y = x2 - 2, x ? 1
Mathematics
Solve the equation by completing the square.a2 - 4a - 21 = 0
A. 
, - 
B. -18, -3
C. 7, -3
D. -7, 3
Mathematics