Find the vertex of the parabola, and determine whether the parabola opens upward, downward, to the left, or to the right.y = -(x + 1)2 - 9
A. (1, 9), down
B. (-1, 9), up
C. (-1, -9), down
D. (1, -9), up
Answer: C
Mathematics
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Find f so that F = ?f. If the fuction is not conservative state so.F(x, y) = 
i + 
j
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mathematics
Evaluate the expression.(-4)-1
A. -4
B. - 
C. 
D. 4
Mathematics
Write as a single logarithm.
loga x - 2 loga z + 
loga y
A. loga (z2
)
B. loga (
- z2 + 
)
C. loga 
D. loga 
Mathematics
Solve the inequality.
? 4
A. (-?, 0] ? 
B. 
C. 
D. 
? 
Mathematics