How do I solve a quadratic equation on TI- 89 graphing calculator?
Posted by: raysmithtx Post date: December 4th, 2009I have TI- 89 Titanium graphing calculator and I know that some people use it to solve quadratic equations quickly. How? Also if you have any tips about other cool stuff it can do let me know. Thanks.
- Tags: Calculator, equation, Graphing, quadratic, Solve
December 4th, 2009 at 4:34 am
I have a TI 89 regular, not the titanium, but hopefully this could help…
1. Press the “catalog” button, and find “solve(” (you have to scroll down a lot). Once you see “solve(” then hit enter.
2. Enter the equation, and then press the comma button, then enter what variable you are trying to solve for.
Example: solve(2x^2+3x+6=0, x)
3. Hit enter, and you’ll have the answer!
December 4th, 2009 at 4:54 am
On the Home screen press f2, and enter.
on the entry line there should be solve()
to use solve in between the parentheses (equation, variable to solve)