When the graph of directed distance is a horizontal line, what can be said about the graph of velocity?
A. It lies above the horizontal axis.
B. It lies below the horizontal axis.
C. It lies on the horizontal axis.
D. The graph of velocity is increasing.
Answer: C
Mathematics
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A. 
yd
B. 
yd
C. 
yd
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A. 27 B. 3 C. 9 D. not a real number
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