Quadratic Formula

BEGINNER

So this has to be one of the easier formulas to create on a graphing calculator. I decided to start with this one because it is a good basis to start with. Anyway, let's begin.

1. Create a new program and name it "QUADFORM" (8 characters is the max a name can be)

2. Press "prgm" and go to the "I/O" tab

3. Find "Prompt" and press "enter" on it

4. Press "alpha" (to get to letters), find the button with "A" above it, and press it. Then press comma.

5. Repeat step 4 with "B" and "C". It should look like this: :Prompt A,B,C

6. Press "enter" to start a new line, then copy this formula into your calculator (The "→" is gotten from pressing "sto→", above "on") :(-B+√(B²-4AC))/(2A)→X :(-B-√(B²-4AC))/(2A)→Y

7. Press "enter" to start a new line again. Press "prgm", go to "I/O" again, find "Disp" and hit enter on it.

8. Put another "A" next to it, press comma, and put "B" after it, like so: :Disp A,B

So this is what your final program should look like:

:Prompt A,B,C

:(-B+√(B²-4AC))/(2A)→X

:(-B-√(B²-4AC))/(2A)→Y

:Disp A,B

Thank you for taking the time to look at this. Give the page a like if it was helpful, or drop a comment below if you have a question or need help.

~Nate