The formula of slope,
→ (y2 - y1)/(x2 - x1)
Then the slope will be,
→ m = (12 - 7)/(5 - 2)
→ [ m = 5/3 ]
Hence, thy slope is 5/3.
Answer: During the second hour it could travel either 4,5,6,7,8,9 hours
Step-by-step explanation: