Not a :D

Hi, everyone, I’m looking at trying to put the answer onto a page after students enter their answer. It is for end model behavior (as x -> -infinity, y->…etc). Is there any way that I can have the correct answer pop up on the screen after they type in their answer? I don’t know how to type in an arrow either…Can anyone help me?
thanks in advance~

Something like this? Answer pop up • Activity Builder by Desmos

That is exactly what I’m hoping to have happen. Thank you so much!