1. TI-83 Tutorial By Mr. Yoon

2. 2 uses Numerical Computation Graphing
TI-83 for Grade 11 Math
2 uses
Numerical Computation
Graphing

3. Main Buttons for Grade 11 Math

4. Numerical Computation
Example:
Compute 1) 2*7
Step 1: Push 2 button
Step 2: Push MULTIPLY button
Step 3: Push 7 button
Step 4: Push Enter Button

5. Numerical Example #2 Example: Compute: Step 1: Push “2nd” button
Step 2:Push the “x²” button
Step 3: Push 4&9 buttons
Step 4: Push “)” button
Step 5: Push “Enter” button

6. Numerical Example #3
Example Compute: Step 1: Push “(“ , “3” , “divide”, “4”, “)” Step 2: Push “plus” button Step 3: Push “(“ , “5” , “divide”, “8”, “)” Step 4: Push the “Enter” button

7. Converting Decimals to Fractions
Using the TI-83 we can convert decimals to nice fractions.
From our last example
Push the “Math” button
Push “Enter”
Finally Push “Enter” again

8. Graphing Example Graphing f(x)= 2x²-7x+3
*If you want to graph a function
press the “Y=” button
*You should get a screen that looks
like
*Enter 2x²-7x+3 into this screen

9. Graphing Example Enter 2x²-7x+3 by pushing “plus”, “3” Push “Graph”
“2” , “Variable”, “x²”, “minus”,”7”. “Variable”
“plus”, “3”
Push “Graph”

10. Graphing Example: Changing the View
We can change the viewing window to get better view
Push the “Window” button
Change Xmin and Xmax
Xmin=-3
Xmax=5
(Use arrow keys and
clear buttons)
Hit the “Graph” Button

11. Solving the equation: 2x²-7x+3=0
When setting f(x)=0 we are looking for the x-intercept or the zeros(roots) (x-intercept , zero, root) (x-intercept , zero, root)

12. Finding the zeros(roots) using TI-83
Press “2nd” and “Trace” buttons
The screen should change to this..
Go to the zero option and hit Enter.

13. Finding the zeros(roots) using TI-83
The CPU is asking for a left bound. Move the “DOT” to the left side of one of the roots. Use the arrow keys to move the dot.

14. Finding the zeros(roots) using TI-83
Jjjj roots(zeros)
(2 roots in this example)
The dot is now on the left side of one of the roots. Push Enter.
The CPU is asking for a right bound
Move the dot to the right side of
root.

15. Finding the zeros(roots) using TI-83
Kk (zero that we are trying to calculate)
The dot is now on the right side of the root. Push Enter.
The CPU is asking for a Guess?
Push Enter again.

16. Finding the zeros(roots) using TI-83
The CPU has calculated one of the roots to be 0.5
Notice that the Y-Value =0.
Y=0 is the definition of a
X-intercept.
Go find the other root.

17. Finding the zeros(roots) using TI-83
Here is the other root.