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Suppose you walk for hours at
miles per hour and then drive a car
for hours at miles per hour,
covering a total distance of 60 miles.
(a) Write a constraint equation that relates the
time spent walking and driving to the total distance
covered.
help (equations)
(b) If you only walk and do not drive, how much time
do you spend walking?
= hours help (numbers)
(c) If you only drive and do not walk, how much time
do you spend driving?
= hours help (numbers)
(d) Find a solution to your equation in part (a) that
has spends some time driving and some time walking.
= hours help (numbers)
= hours help (numbers)
(e) On a piece of paper, sketch a graph your equation
in part (a) and mark your solutions from parts (b)-(d)
on your graph.
Which graph A-D in the figure best resembles your graph?
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(Click on graph to enlarge)
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