<p>Where's the solver located?</p>
<p>LOLZ. That's cheap, using the solver.</p>
<p>Solver on the TI-83 is under the "Math" menu, option zero. On the TI-89, IIRC, it is under the "Apps" menu, option nine.</p>
<p>thanks; how do i use it?</p>
<p>Write in the equation (set equal to zero) with variables where necessary (letters, and not just "x"), and hit down key to bring up the next screen. Fill in the values you want for variables other than the one you want an answer for, and hit "Alpha" + "Enter".</p>
<p>How did you get through Alg II without it? Seriously, I relied on the thing during our speed drills...</p>
<p>We didn't use it in Alg 2-- :(</p>