Find the equation of the transverse axis of the hyperbola.16x2 - y2 = 16
A. y = -4x
B. x = 0 (y-axis)
C. y = - 
x
D. y = 0 (x-axis)
Answer: D
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Subtract the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-2 - (-11)
A. 9 B. -13 C. 13 D. -9
Write an equation for the graph given. The graph represents an logarithmic function f with base 2 or 3, translated and/or reflected.
A. log2(x - 1) - 1 B. log2(x - 1) + 1 C. log2(x + 1) + 1 D. log2(x + 1) - 1
Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient 
of x2 should be positive or negative. DENTAL FLOSS USE 
Years since 1990
A. Linear; positive B. Linear; negative C. Quadratic; positive D. Quadratic; negative
Solve using artificial variables.Maximizez = 5x1 + 4x2subject to:x1 + 2x2 = 15 x1 + x2 ? 12 2x1 + x2 ? 30 x1 ? 0, x2 ? 0
A. Maximum is 57 for x1 = 9, x2 = 3 B. Maximum is 60 for x1 = 0, x2 = 15 C. Maximum is 75 for x1 = 15, x2 = 0 D. Maximum is 63 for x1 = 11, x2 = 2