Solving Equations on a TI-84 Plus

In this tutorial, we solve an equation using the solve function in a TI-84 Plus model calculator. This method will also work on other calculators.

[@orijinale2808]

Wow I wish i found this earlier last school year.

[@MXT2006]

I wish I found this 6 years ago

[@YouTubeUser2014]

@@MXT2006 I wish I found this yesterday.

[@snazzyhead]

hi@@KZbinUser2014

[@danielcrespo7824]

it would be great if you can select a list of most used functions, in order to find them quickly.

[@mikumikuwoooeoooooo8450]

Wow thanks! This is an old video but it's still really useful!

[@trinityf65]

You talk way too fast! If you're going to share your knowledge/kindness, (thank you) please use wisdom. Apart from the sniffle and moving your hand around so quickly, I looked at this 10 times and eventually gave up! Kudos to those who got it.

[@ribbedel]

You could have just entered the function into y= and then look for -12 in the table.

[@datmathdoe4331]

Yep, that's another great method!

[@elliotbeerline1286]

Doesn't work for decimals

[@Vics1303]

the calculator gave you -21 and you got -12?!?!?!?!?!?

[@sSkiRilLexD]

wow you stupid as hell

[@ArcYT]

It solved for x. X = -21 in this instance, Victor.

[@rayturnatus8378]

​@@ArcYTconsidering that this person didn't understand that already, I am willing to assume that they either have not begun studying algebra or have simply become confused.

[@vlexifyx]

@@rayturnatus8378i was also confused because i skipped ahead lol but then i actually looked at his equation and realized he was just checking

[@vaydz4101]

thanks sir, this help was great!

[@xoppa09]

Is this method equivalent to the Math: Solver method

[@firevulkannn3584]

Wow I wish I knew this way long ago

[@BonusCrook]

wow this is an awful calculator

[@JorgeGarcia-jz8jh]

Another way is to graph the left side of the equation and then graph the right side of the equation, find the intersection and you get the value of x and y.

[@joys01]

How do find the intersection?

[@Jack-cv2bb]

Thank you so much. This really helped me ❤❤❤❤❤

[@anigomontoya9504]

Lol first

[@Nakoablue]

Thank you!

[@snehalkancharlawar315]

what do i do if i need more than 1 answer tho..??

[@yenthedietens3879]

Trueee dafuk

[@carsondudley7128]

Use the guess function at +/- 1000 for most quadratics and play around with it until you get the right number of solutions for others. If you have imaginaries I'm pretty sure this does not work lol

[@dylane6102]

you da man

[@adairiandunlavy5454]

thanks bro

[@rem7043]

Thanks bro

[@jasminesimmons3757]

So i can plug in any equation and it’ll be right? For example : radical over 2x-1 then -3=0

[@anthonyseverino8292]

Yup, just tried it and im sure you have too by now. I used to use the TI-89 and it's a beast of a calc! This 84 plus is so annoying to work with.

[@res08hao]

audio is terrible

[@mikumikuwoooeoooooo8450]

I mean...its pretty old, just use captions

[@kadie923]

Wow.

[@nicoquesadiaz]

Soooooooooooooo BORED

[@amandas1270]

don't worry Nico... life will be more entertaining when u get out of 6th grade

[@GamingGamer1000]

@@amandas1270 lies

[@georjed.6658]

I got -14 , why do you think that is?

[@datmathdoe4331]

I'm not too sure. It's tough to say without seeing what you wrote down or put into the calculator, but I'd be willing to bet it was a transcription error (you wrote something or typed something into the calculator incorrectly).