Find the center (h, k) and radius r of the circle. Graph the circle.x2 + (y + 4)2 = 9
A. (h, k) = (0, 4); r = 3
B. (h, k) = (0, -4); r = 3
C. (h, k) = (-4, 0); r = 3
D. (h, k) = (4, 0); r = 3
Answer: B
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Find a parametrization for the line segment joining the points.(0, 0, 0), (-4, -5, 5)
A. x = -4t - 4, y = -5t - 5, z = 5t + 5 B. x = -4t + 4, y = -5t + 5, z = 5t - 5 C. x = 4t, y = 5t, z = -5t D. x = -4t, y = -5t, z = 5t
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 1; local maximum at x = -1; concave up on (-?, ?) B. Local minimum at x = 1; local maximum at x = -1; concave down on (0, ?); concave up on (-?, 0) C. Local minimum at x = 1; local maximum at x = -1; concave up on (0, ?); concave down on (-?, 0) D. Local minimum at x = 1; local maximum at x = -1; concave down on (-?, ?)
Construct a table that displays the number of directed paths of length 1 or 2 between each pair of vertices in the following graph. 
A. 
B. 
C. 
D. 
Find the simple interest. Round to the nearest cent.$1700 at 15% for 3 months
A. $42.50 B. $1763.75 C. $255.00 D. $63.75