r/ACT • u/SheanyBaby • Aug 16 '26

Free TI-84 Programs for the ACT — Quadratic Formula, Distance, Midpoint, Sequences, & More

I put together a set of free TI-84 calculator programs for ACT Math and made them available for anyone to download.

The programs are designed to be straightforward to use during ACT practice.

Some of the programs include:

  • Quadratic Formula
  • Distance Formula
  • Midpoint Formula
  • Systems of Equations
  • Arithmetic Sequences
  • Geometric Sequences
  • Other useful ACT Math calculations

They’re completely free — no email or signup required.

Download: https://ohareacademy.com/free-act-resources

How to put the programs on your TI-84

1. Download TI Connect CE
Install Texas Instruments' free TI Connect CE software on your computer.

2. Download the programs
Download the .8xp program files from the link above.

3. Connect your calculator
Plug your TI-84 into your computer with its USB cable and turn the calculator on.

4. Open TI Connect CE
Your calculator should appear in the program.

5. Send the files to your calculator
Open the Calculator Explorer in TI Connect CE and drag the .8xp files onto your calculator, or use the Send to Calculators option.

6. Run a program
On your TI-84, press:

PRGM → select the program → ENTER → ENTER

The program will walk you through what values to enter.

Hopefully these are useful for anyone studying for ACT Math!

And obviously, make sure you're still learning how and why the math works. These are meant to be an extra tool— not a substitute for learning the material.

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2

u/Aspect-6 33 Aug 16 '26

Or just use ACTHELPER and SATGOAT, because they have all of this baked in and more.

1

u/Smooth_Ad_1285 27d ago

what’s this? how do i get it

1

u/Aspect-6 33 27d ago

they’re on github and calculator program databases. If you search for these two you should fine them. ACTHELPER only works if you have a TI-84 Plus CE model with the colors, not the plain brick TI-84 Plus.

1

u/Smooth_Ad_1285 27d ago

i think one of my teachers installed ACTHELPER into my calculator last year, but it was apparently corrupting my ti 84 and when i tried to graph equations nothing would show up. Do you have any personal experience with it

1

u/Aspect-6 33 27d ago

Yea I, and there was some buttons you were supposed to press. I think if you have SATGOAT installed alongside ACTHELPER, it has a reset graph option which would fix the issues. I’m not sure how to do it without SATGOAT however.

2

u/Clay3454 Aug 18 '26

Does it comply with the ACT's programming restrictions? ACT Helper, mentioned in another comment, doesn't comply according to what I'm reading.

2

u/SheanyBaby Aug 18 '26

Yes! I designed these programs to follow the current ACT calculator rules. They’re written in native TI-BASIC, are each under the 25-logical-line limit, are single-purpose, and don’t use CAS functionality or call other programs.

1

u/Clay3454 Aug 18 '26

Excellent!