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rdrlr
How to find the area under this curve?
A bicyclist pedals along a straight road with velocity, v, given in the figure below. She starts 3 miles from a lake; positive velocities take her away from the lake and negative velocities take her toward the lake. http://i.imgur.com/lhJQd.png Approximately how far away is she at this time? Give a best estimate.
just count the number of squares
Please define "under". That first 20 is troublesome.
It includes both the negative and positive velocities, so not exactly under for both
0 is the x axis of course
They basically want you to count squares here.
That seems too simple. What would be the units I would use?
The count the number of square when it is above, and subtract from the the number of square when it is below.
The square is 10mph time is 1 h So the result is 10 miles for each square
Keep it simple, they asked for an approximation.
What should I do for the squares that aren't whole?
It seems a bit tricky go guess
if you want to make it more complicated, then just roughly estimate how much of a square it is.
Okay, I will try my best to approximate it. Thank you