Mens Speed Skating y= -7.332x + 15963.779
Womens Speed Skating y= -4.663x + 9998.771
The slope in the equation is how well the skaters on average improve from olympics to olympics.
It is negative because as the years go on the time gets shorter and shorter because the skaters are faster.
The b in the equation is the y intersept, and is the average they would be going in the year 1BC.
It is not year 0 because, http://en.wikipedia.org/wiki/0_(year)
In 2100 if trends keep the way they are now women will go 5000m in 2 mins 5.56 seconds.
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