Interpreting Distance-Time Graphs!

On the next morning, Mark rode his bike east from his home up a steep hill to go to his school.

After a while the slope eased off and rode his bike in a slow phase.

At the top of the hill he raced down the other side and find a faster phase going down the hill.

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Locate the section in the graph where he start to leave his home; slope eased off; and raced down the hill and come back home.

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Can you determine which of the section the graph is more steeper? How do we know that the line is steeper than the other?

Listen

Use an imaginary data to estimate the slope of each section. (Hint: Use two given points in the graph for each setion to determine the slope of a line)

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