If it is just too easy, have her moved up. That's the whole point with teaching her yourself.

Although my son also got the graphs correct, it was not super easy for him. To click on something 15 times and to read a small graph accurately without making a mistake can be difficult for him. I was guessing that the graphs were testing for that. I actually think the EPGY is helping my so with his carelessness because he realizes that missing a question slows down his progress. Then he can't get to something novel. So, he is learning to check his work.