TI-84 Distance Formula Program (ACT/SAT Calculator Hack!)

Learn how to program your TI-84 calculator to find the distance between two coordinate points — a must-know geometry skill for ACT and SAT math!
This step-by-step tutorial shows you how to write a TI-84 program that prompts for the first point (x, y), the second point (u, v), and automatically applies the distance formula.

If you want faster problem solving, higher confidence, and less test anxiety, these calculator shortcuts will help you master the math section.

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🧠 About My2tor
I’m Tina Wiles, test anxiety expert and founder of My2tor & ACTSATPrepHQ.com.
I help students master the mindset, strategy, and content they need to succeed on high-stakes exams like the ACT and SAT.

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⏱ Timestamps
00:00 Intro
00:14 Creating a new program
00:28 Naming the program (DISTANCE)
00:37 Display instructions for first point
01:16 Prompt for x and y
01:26 Display instructions for second point
02:02 Prompt for u and v
02:30 Writing the distance formula
02:49 Storing the result
03:01 Displaying the distance
03:28 Running the sample test
03:40 Example: (0,0) to (3,4) = 5
03:57 Outro

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