Solve the problem.A sequence is defined by f(n) = floor(
)?ceiling(
). By looking at several examples on your calculator determine 
A. (n + 1)2
B. n2 + n
C. n2 - n
D. (n - 1)2
Answer: B
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Determine where the function is increasing and where it is decreasing.f(x) = -8x2 - 2x - 4
A. increasing on 
decreasing on 
B. decreasing on 
increasing on 
C. increasing on 
decreasing on 
D. increasing on 
decreasing on 
Solve the problem.Use determinants to write an equation in slope-intercept form of the line that passes through the points 
A. y = 3x - 1 B. y = 3x + 1 C. y = -3x - 1 D. y = -3x + 1
Write the negation of the statement. Remember that the negation of p ? q is p ? ~q.If c - 4 ? 3, then c ? 7.
A. c - 4 > 3 and c > 7. B. c - 4 ? 3 so c > 7. C. c - 4 ? 3 and c > 7. D. c - 4 ? 3 and c ? 7.
Multiply.-10xy7(5xy7 + 2y3 + 5)
A. -50x2y14 - 20xy10 B. -50x2y14 + 2y3 + 5 C. -50xy7 - 20y3 - 50 D. -50x2y14 - 20xy10 - 50xy7