Find the vertex, focus, and directrix of the parabola. Graph the equation.(y + 2)2 = 8(x + 3)
A. vertex: (3, 2)
focus: (3, 4)
directrix: y = 0
B. vertex: (-3, -2)
focus: (-1, -2)
directrix: x = -5
C. vertex: (-3, -2)
focus: (-3, 0)
directrix: y = -4
D. vertex: (2, 3)
focus: (4, 3)
directrix: x = 0
Answer: B
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At the outside wall the roof is 9 feet high. The slope of the roof is 1.28 feet per foot. What is the height of the roof 4 horizontal feet from the outside wall toward the interior of the room? ?
A. 15.06 feet B. 12.13 feet C. 12.44 feet D. 14.12 feet
Answer the following statement(s) true (T) or false (F)
It was not until near the beginning of the twentieth century that having students produce their own original geometric proofs became a widespread practice.
Solve the system of equations by using substitution. 
A. x = 2, y = 9 B. x = 3, y = 9 C. x = 2, y = 8 D. x = 3, y = 8
Solve the system by the elimination method.-5x + 7y = 49-2x - 5y = -35
A. ? B. {(0, 7)} C. {(0, 8)} D. {(-1, 8)}