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?

-3.5

The distance Rachel covers per hour is 3.5 miles

Step-by-step explanation:

After 2 hours, she is 13 miles from the campground.

After 4 hours, she is 6 miles from the campground.

Let x be the number of hours, y be the number of miles from the campground, then we have two points (2,13) and (4,6).

The equation of the line passing through the points and is

Substitute:

Hence,

The slope of the line is and it represents that  the distance Rachel covers per hour is 3.5 miles.

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step-by-step explanation: lol