<p>How do you integrate a function with respect to y on the ti-84 calculator. I know how to do it by hand and with respect to x, but I don’t know what to put in the calculator. thanks</p>
<p>It doesn’t really matter what variable you use. As long as you can write everything in terms of y, you can call that variable anything you want. Since I think x is the only useable variable on the TI-84, you’ll just have to rewrite in terms of y and then call that x. It’s confusing, I know.</p>
<p>so when I go to graph it, do I put y’s instead of x’s too?</p>
<p>Well, the problem is that you can’t exactly graph a non-function on the TI-84, so you’ll have to solve the function in terms of x and graph it as multiple functions. Like, if you have the function f(y) = y^2, you’ll have to graph two functions: one as sqrt(x) and the other as -sqrt(x).</p>
<p>Oh, and then when I do math 9, I just put it in as if i was integrating with respect to x. But then when I write it down, it is with respect to y.</p>
<p>Precisely.</p>
<p>Ok, I understand it. Thank you for your help and for replying so quickly.</p>
<p>You actually can use any one letter variable name you want in the calculator, using the alpha keys to denote the name of the variable.</p>