Determine whether the function is one-to-one.
?
y = 9x
?
A. Yes, it is one-to-one.
B. No, it isn't one-to-one.
Answer: A
Mathematics
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Simplify the rational expression.
A. 
B. a - b
C. 
D. a - 2b + 1
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Solve for x.-4(x + 8) - (-5x + 7) = -7
A. x = 32 B. x = - 46 C. x = 8 D. x = - 32
Mathematics
Find the limit.
A. 7 B. 3 C. 0 D. Does not exist
Mathematics
Perform the indicated operations.(8x6 - 9x5 + 3x4 - 9) - (4x6 - 5x5 + 5x4 - 2)
A. 12x6 - 14x5 + 8x4 - 11 B. 4x6 - 14x5 + 8x4 - 11 C. 12x6 - 14x5 + 8x4 - 7 D. 4x6 - 4x5 - 2x4 - 7
Mathematics