Fermin was an athlete who trained every day and made some great progressive training. Three days a week approached the track, which is 400 meters long in the 1- wing. His training methodology consists in follows; first laps he walks, beginning at 5 Km/H and he increases speed in 0.5 Km/H each lap. Fermin run he last lap at 18 Km/H, at the end of the training Fermin has run 27 laps. This may seem an example of linear growth, the increase in speed is 0.5 per lap; so if the increase is constant this is clearly an example of linear growth.

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However a deeper analysis identifies each lap is shorter than before -Fermin goes faster-. Analyzed in this way the problem you can determine that FerminĀ“s speed grows exponentially with time. The return was not as suitable as the time to see how changing the speed of Fermin.

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In exponential growth the variable is not the only thing which it is increased with time, the growth rate is also increasing.

Lineal growth 1, 2, 3, 4, 5, 6, 7, 8…

Exponential growth 2, 4, 8, 16, 32, 64…