Graph the parabola. State the vertex of the parabola.x = y2 + 4y + 2
A. vertex (-2, -2)
B. vertex (-2, 2)
C. vertex (2, 6)
D. vertex (-2, -2)
Answer: A
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Solve the problem.Find the equation of the circle, written in the form 
, passing through the points 
A. x2 + y2 + 10x + 6y + 9 = 0 B. x2 + y2 - 10x - 6y - 2 = 0 C. x2 + y2 - 10x - 6y + 9 = 0 D. x2 + y2 - 5x - 3y + 9 = 0
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total cost function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total revenue function, R(x), is such that 
. Find R(x).
A. R(x) = 51x - 0.3x2 B. R(x) = 50x - 0.6x2 C. R(x) = 51x + 0.3x2 D. R(x) = 53x - 0.3x2
If M and N are the midpoints of nonparallel sides 
and 
of trapezoid HJKL, then 
.
Answer the following statement true (T) or false (F)
Find an equation of the line having the given slope and containing the given point. m = 9; (-5, 0)
A. y = -9x + 41 B. y = 9x + 45 C. y = 9x - 48 D. y = 9x - 46