Texas Instruments TI-84 PLUS series Tutorials page 2

Graphic calculator

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Using a Manual Fit Line

Action

Step 6: To access the manual-fit line, press STAT

and right arrow to access the CALC menu.

Select Manual-Fit Y=mX + b.

Step 7: The screen that you will see shows that

you need to select a location in the y= (equation

editor) to store the result of calculator of the

manual-fit line. Press ALPHA F4 (this is the

TRACE button) and you will see the selections.

Press ENTER to select Y1.

Step 8: Down arrow to Calculate and press ENTER

to calculate the manual-fit line.

Step 9: You will see a cursor in the center of the

screen. Use the arrows to move the cursor to a

location that you think will be on a trend line.

Step 10: Press ENTER to anchor the first point.

Continue to move the line using the arrows.

Step 11: When you have found a second point that

you think would be on the trend line, press ENTER.

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