Find the vertex, focus, and directrix of the parabola. Graph the equation.(x + 2)2 = -4(y + 2)
A. vertex: (2, 2)
focus: (2, 1)
directrix: y = 3
B. vertex: (-2, -2)
focus: (-3, -2)
directrix: x = -1
C. vertex: (2, 2)
focus: (1, 2)
directrix: x = 3
D. vertex: (-2, -2)
focus: (-2, -3)
directrix: y = -1
Answer: D
Mathematics
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Construct a truth table for the statement.~(p ? q) ? (p ? ~q)
A. 
| T | T | T |
| T | F | F |
| F | T | F |
| F | F | F |
B.
| T | T | T |
| T | F | F |
| F | T | F |
| F | F | T |
C.
| T | T | T |
| T | F | T |
| F | T | T |
| F | F | T |
D.
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
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Clear fractions then solve by substitution.2x - 2y = -64x + 
y = - 
A. {(-1, 0)} B. ? C. {(2, 0)} D. {(-2, 1)}
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Use the data to make a frequency distribution table.Lori asked 24 students how many hours they spent doing homework during the previous week.
Frequency Distribution Table 
What will be an ideal response?
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Solve the system.
+ 
= 
- 
= 
A. {(-9, 4)} B. {(4, -9)} C. {(-4, 9)} D. {(4, 8)}
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