If a person drives 208 miles, his average speed S, in miles per hour, for the trip depends on the time t, in hours, spent driving.  The relationship  is
?
.
A.  Make a graph of  average speed versus time spent driving.  Include driving times of up to 5 hours.B. Is the graph concave up or concave down?C.  For a 208-mile trip, would an increase in speed make more difference in average velocity for a slow driver or for a fast driver?

What will be an ideal response?


A.

?

?

B. Concave up.

?

C.  A change in speed has a greater effect on average velocity for a fast driver.


Mathematics

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