Find the equation of the tangent line at the given value of x on the curve.2xy - y2 = 1, x = 1
A. y = x - 1
B. y = 1
C. x = 1
D. y = -x + 1
Answer: C
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Find the angle between u and v in radians.u = 8i - 3j - 8k, v = 5i + 8j - 7k
A. 1.31 B. 1.02 C. 1.57 D. 0.55
First, rewrite each equation in exponential form. Then, use a table of coordinates and the exponential form to graph the logarithmic function. Begin by selecting -2, -1, 0, 1 and 2 for y. Finally, based on your graph, describe the shape of a scatter plot that can be modeled by f(x) = log b x, 0 < b < 1.y = log1/2 x
A. 
decreasing,
although rate of decrease is slowing down
B. 
increasing
C. 
increasing,
although rate of increase is slowing down
D. 
decreasing,
although rate of decrease is slowing down
For the given function expressed verbally, give a symbolic representation.To convert x square feet to y square yards, divide x by 9. Let y = f(x).
A. f(x) = 9/x B. f(x) = 9x C. f(x) = x - 9 D. f(x) = x/9
Multiply.4 ? (-4) ? (-11) ? (-5)
A. -880 B. 181 C. 880 D. -16