Find the equation of the parabola corresponding to the given information.The parabola has focus ( - 1 , 0 ) and directrix x = 1.
A. y = - 
x2
B. y = 
x2
C. x = - 
y2
D. x = 
y2
Answer: C
Mathematics
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Assume that the sequence converges and find its limit.a1 = 3, an + 1 = 
A. 4 B. 8 C. 3 D. 2
Mathematics
Graph the linear function and give the domain and range.f(x) = 
x
A. D = (-?, ?), R = (-?, ?)
B. D = (-?, ?), R = (-?, ?)
C. D = (-?, ?), R = (-?, ?)
D. D = (-?, ?), R = (-?, ?)
Mathematics
Answer the question.Which property of addition of whole numbers is illustrated?
A. Commutative property B. Additive-identity property C. Associative property
Mathematics
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
tan (sin-1 u)
A. 
B. 
C. 
D. 
Mathematics