Determine where the function is increasing and where it is decreasing.f(x) = -x2 - 8x - 7
A. increasing on (-?, -4)
decreasing on (-4, ?)
B. increasing on (-4, ?)
decreasing on (-?, -4)
C. increasing on (9, ?)
decreasing on (-?, 9)
D. increasing on (-?, 9)
decreasing on (9, ?)
Answer: A
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Assume that 
.
?
Find the value of the determinant.
?
Fill in the blank(s) with the appropriate word(s).
Evaluate.If f(x) = 2x + 10 and g(x) = x2 + 3, evaluate 
(2).
A. 98
B. 2
C. 
D. 21