The function f is one-to-one. Find its inverse.f(x) = 

A. f-1(x) = 
B. f-1(x) = (x - 1)2
C. f-1(x) = x2 + 1, x ? 0

D. f-1(x) = x2 - 1, x ? 0


Answer: C

Mathematics

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C.
D. 1

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Rationalize the denominator.

A. 11 - 2
B. 2 - 11
C. -11 - 2
D. 11 + 2

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Identify the equation as a parabola, circle, ellipse, or hyperbola.6x2 = 25 - 6y2

A. Parabola B. Ellipse C. Hyperbola D. Circle

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Graph the inequality on a number line. Then write the solution in interval notation.x > 0

A. [0, ?)

B. (-?, 0)

C. (0, ?)

D. (-?, 0]

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