<p>How do you put in Y1 and Y2 etc. Because I want to say Y2 = -Y1</p>
<p>Is it possible? I know it is for lists, but never tried with Y. Anyways, go to VARS, scroll right, enter Functions, and you can see the Ys.</p>
<p>Thank you so much!!</p>
<p>Oh, also - is it considered cheating to store formulas on one’s calculator for the SAT II?</p>
<p>anyone?..</p>
<p>^Nope. Store whatever you want.</p>