Solve the system of equations by substitution.
A. x = -5, y = 2; (-5, 2)
B. x = 5, y = 2; (5, 2)
C. x = -5, y = -2; ( -5, -2)
D. x = 5, y = -2; (5, -2)
Answer: D
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Solve the problem.Refer to the following preference schedule.
Find the winner by a runoff of the top two candidates.
A. D B. C C. B D. A
Give an appropriate answer.The following table shows the average income of families in a certain state from 2008 through 2012. 
Draw a bar graph that makes the increase look small.
What will be an ideal response?
Find the relative maxima and relative minima, if any, of the function.
?
?
A. Relative maximum: 
; No relative minimum
B. Relative maximum: 
; Relative minimum 
C. No relative maximum; Relative minimum 
D. No relative maxima or minima.
Determine the standard equation of the hyperbola with the given characteristics.The vertices are at (-4, 0) and (4, 0), and the foci are at (-9, 0) and (9, 0).
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1