document.write( "Question 1160996: 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?\r
\n" ); document.write( "\n" ); document.write( " A. 20; Rachel's initial distance from the campground
\n" ); document.write( " B. −3.5; the rate at which Rachel's distance from the campground changes per hour
\n" ); document.write( " C. 3.5; Rachel's initial distance from the campground
\n" ); document.write( " D. 20; Rachel's final distance from the campground
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Algebra.Com's Answer #784420 by josgarithmetic(39626)\"\" \"About 
You can put this solution on YOUR website!
Points as time x, distance from camp y, (x,y):
\n" ); document.write( "(0,20), (2,13), (4,6).\r
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\n" ); document.write( "\n" ); document.write( "\"y=mx%2B20\"
\n" ); document.write( "-
\n" ); document.write( "\"m=%2813-20%29%2F2=%286-13%29%2F2\"
\n" ); document.write( "\"m=-7%2F2=-7%2F2\"
\n" ); document.write( "-
\n" ); document.write( "\"highlight%28y=-7x%2F2%2B20%29\"\r
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\n" ); document.write( "\n" ); document.write( "She is hiking at 3.5 miles per hour.
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