A very simple resource, this. But there’s not much function notation stuff out there.
I find pupils’ responses to function notation interesting. Stuff they can do like 2x+3 = 5x – 6 becomes suddenly impossible when presented in the form f(x) = 2x + 3 , g(x) = 5x – 6, find f(x) = g(x). I’m not sure why.
Anyone found anything awesome on function notation?