Question involving the TI 89 Graphing Calc.

Test Preparation SAT Preparation
1

<p>How do I, for example, enter this equation into the calculator?
Solve for:</p>

<p>4x-2, given that x=5</p>

<p>I know all the buttons like x, the comma, the parameter (the bar button), but I just don't know what order to pick these in to make it all work. Can somebody show the steps or write it out how you would put type it in.</p>

<p>Thanks.</p>

2

<p>That’s not an equation though…</p>

3

<p>solve(4x-2=y,y)|x=5</p>

<p>that would solve for y which would be the answer.</p>

4

<p>^ thanks! this is save me a lot of trouble</p>

5

<p>that seems like more work than just multiplying and subtracting if you already know x rofl</p>

6

<p>^ what r u talking about?
The problems are gonna be like:
Solve for y when teh equation is y=6x^3+2x^2-6x-4 , given x=3
I’d take the calculator route to avoid stupid mistakes and to do it faster.</p>

7

<p>Another way is to assign y1=6x^3+2x^2-6x-4 and then type:
y1(3) Enter</p>

8

<p>lol i meant just multiplying it out with the calc, which i still think would be quicker :P</p>

9

<p>but these are just examples. if its really long questions, ti89 will do it quicker</p>

10

<p>I suppose although i mean, if you just instead of typing x put (xvalue) wherever it appears but nonetheless i’m done arguing hahah</p>

11

<p>TI 89s arent allowed on the SATs… I dont understand how you guys dont know this yet.</p>

12

<p>TI 89’s are allowed. I dont understand how you dont know it yet.</p>

<p>I personally used TI 89 on the November test.</p>

13

<p>WOW sorry then, a friend told me that. Thats Awsome!!! Easy 800. Is it also acceptable for the Math II?</p>

14

<p>Not sure how you can use TI 89 to get an 800 on math SAT. You dont really need a calculator there. It does come handy on Math II though (but any TI will be plenty).</p>

15

<p>■■■■ yes!!! solve my equation in 10 sec calculator? thanks buddy ti 89</p>