Find the inverse of the function.f(x) = (x - 15)2 + 2 , x ? 15

A. f-1(x) = 2x2 + 15
B. f-1(x) =  - 15
C. f-1(x) =  + 15
D. f-1(x) =  - 2


Answer: C

Mathematics

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A.
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C.
D.

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What will be an ideal response?

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Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = -8x5 - 3x4 - 1.5x3 + 7x2 + x + 6

A. 1 positive zero, 3 or 1 negative zeros B. 1 positive zero, 2 or 0 negative zeros C. 1 positive zero, 4 or 2 negative zeros D. 1 positive zero, 4, 3 or 1 negative zeros

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Find the derivative of the function.f(x) = (5x - 3)( + 3)

A. f'(x) = 7.5x1/2 - 1.5x-1/2 + 15 B. f'(x) = 3.33x1/2 - 3x-1/2 + 15 C. f'(x) = 7.5x1/2 - 3x-1/2 + 15 D. f'(x) = 3.33x1/2 - 1.5x-1/2 + 15

Mathematics