Find all rational zeros and factor f(x).f(x) = x3 - 7x2 - x + 7

A. 1, -1, 7; f(x) = (x - 1)(x + 1)(x - 7)
B. 1, -2, 9; f(x) = (x - 1)(x + 2)(x - 9)
C. 1, -1, -7; f(x) = (x - 1)(x + 1)(x + 7)
D. 1, -1, -8; f(x) = (x - 1)(x + 1)(x + 8)


Answer: A

Mathematics

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Write the equation of the circle in standard form. Find the center and radius. Then sketch the graph.x2 + y2 + 6x - 4y - 12 = 0

A. (x - 3)2 + (y - 2)2 = 25
(h, k) = (3, 2), r = 5

B. (x + 3)2 + (y + 2)2 = 25
(h, k) = (-3, -2), r = 5

C. (x - 3)2 + (y + 2)2 = 25
(h, k) = (3, -2), r = 5

D. (x + 3)2 + (y - 2)2 = 25
(h, k) = (-3, 2), r = 5

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B.

C.

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A.

B.

C.

D.

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