Match the system of inequalities with one of the graphs.x2 + y2 ? 49x + y > 4
A. 
B. 
C. 
D. 
Answer: A
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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 = +1.29,; local maximum at x = -1.29; concave up on (0, ?); concave down on (-?, 0) B. Local minimum at x = +1.29,; local maximum at x = -1.29; concave up on (-?, -1.29) and (1.29, ?); concave down on (-1.29, 1.29) C. Local minimum at x = -1.29,; local maximum at x = +1.29; concave up on (-?, -1.29) and (1.29, ?); concave down on (-1.29, 1.29) D. Local minimum at x = +1.29,; local maximum at x = -1.29; concave down on (0, ?); concave up on (-?, 0)
Solve the problem.If P = (7, -10) and Q = (x, 74), find all numbers x such that the vector represented by 
has length 91.
A. {-28, 49} B. {-42, 42} C. {-42, -28} D. {-28, 42}
Graph the system of inequalities, and find the coordinates of the vertices.3x - 2y ? 6 x - 1 ? 0
A. 
B. 
C. 
D. 
Use the addition property of equality to solve the equation.-13 + n = 29
A. -16 B. -42 C. 42 D. 16