Solve the problem.
-Mark started out by walking up a hill for 5 minutes. For the next 5 minutes he walked down a steep hill to an elevation lower than his starting point. For the next 10 minutes he walked on level ground. For the next 10
Minutes he walked uphill. Determine which graph of elevation above sea level versus time matches the given
Situation.

Question

Quizplus · Accepted Answer

- Mark starts walking uphill for 5 minutes, so the graph should show an increase in elevation. 
- He then walks down a steep hill for 5 minutes, so the graph should show a sharp decrease in elevation. 
- He then walks on level ground for 10 minutes, so the graph should be relatively flat. 
- Finally, he walks uphill for 10 minutes, so the graph should show another increase in elevation. The graph in option C matches these criteria.

Solve the Problem. -Mark Started Out by Walking Up a Hill for 5