Rachel hikes at a steady rate from a ranger station to a campground that is 20 mi away. After 2 h, she is 13 mi from the campground. After 4 h, she is 6 mi from the campground. A graph shows her distance from the campground y, in miles, after x hours. What is the slope of the graph and
what does it represent?
O A 20: Rachel's initial distance from the campground
o
В.
-3.5, the rate at which Rachel's distance from the campground changes per hour
C. 3.5: Rachel's initial distance from the campground
OD. 20, Rachel's final distance from the campground