Pattern match with function transform af(x-h)+k

Questions
1

Building a transform function activity that allows me to parse out a, h, and k. from af(x-h)+k . So far it wants af·(x-h)+k for pattern match. Note a, h, & k are all numbers.

2

Thought i’d reply to this since it’s the most recent of many posts on this sort of topic, and the approach below will also handle horizontal stretches and I imagine might help others with similar requests.
I posted this in the examples sections but I’m not sure how that part of this site is really organized, so here goes:

Desmos Activity Builder doesn’t handle af(k(x-c))+d function transformations well.

However this Function Transformation Component will:

  • allow for any parent function f(x)
  • graph any transformation applied to f(x)

Two versions, one instant and the other animated. Looks like this:

desTrans1-min

desTrans2-min

  • No dependencies
  • No RawExpression
  • Works well with correctness checks
  • It “just works” with little to no fiddling on your end
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3

Nice solution. I’ll definitely make use of this next year.

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