Determine whether the given function is one-to-one. If so, find a formula for the inverse.f(x) = 2x + 7
A. f-1(x) = 
- 7
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
Answer: D
Mathematics
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A. 3x10 B. 2x6 - 4x4 + 5 C. 2x6 + 8x4 - 25 D. 2x6 - 4x4 - 25
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Factor completely, or state that the polynomial is prime.12x2y2 - 588y2
A. prime B. 12y2(x + 7)(x - 7) C. y2(x + 7)(12x - 84) D. 12y2(x + 7)(x2 - 7x)
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Find the slope of the line (if it exists) and the y-intercept (if it exists).y = 9x + 8
A. Slope 9, y-intercept (0, 8) B. Slope 8, y-intercept (0, -9) C. Slope -9, y-intercept (0, 8) D. Slope 8, y-intercept (0, 9)
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Find the indicated partial sum for the sequence with the given general term. s3, an = (n + 4)(n - 8)
A. 106 B. 182 C. -71 D. -106
Mathematics