Solve the equation.
+ 7 = x + 3
A. 
B. {2, 8}
C. {-4}
D. {8}
Answer: D
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Solve the problem.The vertex and focus of one parabola are, respectively, the focus and vertex of a second parabola. Find the equation of the first parabola, if 
is the equation of the second.
A. y2 = 32(x - 8) B. y2 = -32(x + 8) C. y2 = -32(x - 8) D. y2 = 32(x + 8)
Find the vertex, focus, and directrix of the parabola. Graph the equation.(x - 3)2 = -8(y + 2)
A. vertex: (-3, 2)
focus: (-3, 0)
directrix: y = 4
B. vertex: (-3, 2)
focus: (-5, 2)
directrix: x = -1
C. vertex: (3, -2)
focus: (3, -4)
directrix: y = 0
D. vertex: (3, -2)
focus: (1, -2)
directrix: x = 5
Provide an appropriate response.When using the substitution or elimination method to solve a system of two equations, you end up with an equation stating 0 = 0. What does this indicate to you about the system of equations?
What will be an ideal response?
Solve the problem. Simplify the fraction, if possible.A salesman has organized his clients into groups according to their distance from his home. 
What fraction of the salesman's clients are less than 10 miles from his home?
A. 
B. 
C. 
D. 