Solve.4x2 - 4y2 = 16 2x2 + y2 = 8
A. (0, -2), (0, 2)
B. (-2, 0), (2, 0)
C. (-2, -4), (-2, 4), (2, -4), (2, 4)
D. (-2, 4), (2, 4)
Answer: B
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A. 
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Find the cardinal number for the set.F = {x ? x ? N and x < 0}
A. n(F) = 0 B. n(F) = 1 C. n(F) = 2 D. n(F) = 100
Evaluate using substitution.
Find the equation of the axis of symmetry.f(x) = -7x2 - 14x - 3
A. x = -2 B. x = 1 C. x = 4 D. x = -1