IMMENSELY. Considering the Math Level 2 goes up to Trig, not having a graphing calculator would be hugely detrimental to the score you could have gotten. Unless, however, you are not familiar with one, in which case it might be better if you just go in with a scientific calculator. But, having taken the Math II’s twice, once with and once without a graphing calculator, my score was a lot higher the time with a graphing calculator. Oh wait, I just misread the question….if you are taking the Math Level 2, then listen to everything I just said, but if you are taking the Math Level 1, then don’t bother with a graphing calculator, cuz’ it’s just gonna take too much time considering that the Math Level 1 only goes up to Algebra 2.