Refer to the figure. 
AB
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Find the slope of the line through the given pair of points, if possible. Based on the slope, indicate whether the line through the points rises from left to right, falls from left to right, is horizontal, or is vertical.(2.2, 0.5) and (0.1, -2.3)
A. 
; rises
B. - 
; falls
C. - 
falls
D. 
; rises
Solve the system of equations by graphing. If the system is inconsistent or the equations are dependent, say so.3x - 2y = 53x + 2y = 13
A. ? (inconsistent system) B. {(3, 2)} C. {(2, 3)} D. {(3, 4)}
Solve the problem.A whispering gallery is a room in the shape of an elliptic reflector. If a source of sound is placed at one focal point of an elliptic reflector, the sound is reflected through the other focal point. If one person speaks at one focal point, then another person at the other can hear sounds as faint as a whisper. If the whispering gallery is based on the ellipse 
+ 
= 1, how many units from the center of the ellipse would the two people stand?
A. 13 units B. 25 units C. 12 units D. 5 units
Solve. Round your answer to the nearest tenth, if necessary.The hypotenuse of a right triangle is 11 feet long. One leg of the triangle is 3 feet longer then the other leg. Find the perimeter of the triangle.
A. 6.1 feet B. 4.3 feet C. 26.3 feet D. 9.1 feet