Using a Line as a function (getting a value)
If I create a function by entering it into the input bar:
g(t) = 4t + 5
I can then call the function with an input value
However, when I ask GeoGebra to make a Line:
It creates something that sort of looks like a function:
Yet I can't treat it as such:
What concept am I missing? I've scoured the documentation. I investigated Paths a bit but didn't get far.
I note that I can execute h(x) and GeoGebra then creates a function (say r(x)) which I can use! What's happening there? Again, I'm missing a concept or two here.