Yihana walks for 10 minutes. A graph of her elevation in metres versus time in minutes is shown. The length of time for which she was walking uphill is
Answer Choices
A. 5 minutes
B. 6 minutes
C. 4 minutes
D. 7 minutes
E. 8 minutes
Yihana walks for 10 minutes. A graph of her elevation in metres versus time in minutes is shown. The length of time for which she was walking uphill is
Answer Choices
A. 5 minutes
B. 6 minutes
C. 4 minutes
D. 7 minutes
E. 8 minutes