Solve the system of equations using substitution.
A. x = -2, y = -4; x = -2, y = 4
or (-2, -4), (-2, 4)
B. x = -2, y = -4; x = -2, y = 4; x = 2, y = 0
or (-2, -4), (-2, 4), (2, 0)
C. x = -2, y = -4; x = 2, y = 0
or (-2, -4), (2, 0)
D. x = -2, y = -4 or (-2, -4)
Answer: D
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A. 
B. 
C. 
D. 
Identify the figure and name it using the labels shown.
A. point W
B. ?W
C. ray W, or 
D. line W, or 
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A. {(20, 1995), (24, 1996), (25, 1997), (25, 1998),(28, 1999)} B. {20, 24, 25, 28} C. {(1995, 20), (1996, 24), (1997, 25), (1998, 25),(1999, 28)} D. {1995, 1996, 1997, 1998, 1999}
Find the distance d(A, B) between the points A and B.A = (1, 5); B = (-4, -1)
A. 
B. 1
C. 
D. 30