My solution to the model kerb slide activity

I could have modelled this just using piece-wise functions with restricted domains. When it was loaded into Geogebra though it was clear that the bottom left section was doing more than just being horizontal. There is a definite negative (but increasing towards zero) gradient… sounds a bit like an exponential decay function to me.

Dan's solution from Geogebra.
I used a piece-wise and an exponential decay graph for my model. What did you get?

My Geogebra model – feel free to use it and modify it to see if you can make it a better fit to ‘the data’, AKA the wall.

Pro-Tip: The thicker the line, the better the fit. This is a joke.

Model kerb slide?

How could you use what you know about functions to model this image? Credit: Guillermo Suarez on Unsplash

Pinning it down, reluctantly

  • use any functions to model the wall that the guy is skating along above.
  • Try to be specific about what domains you want your functions to occupy
  • be as creative as you wish, or as lame
  • bon voyage!

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