Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Bring a new dimension of learning to your classroom with activities that put math in motion.
Learn on your own schedule! All 2021 T³IC sessions are now available on demand through May 31.
We are here to help with distance learning resources for schools and districts.
Students use the Manual-Fit and Linear Regression commands to find lines of best fit to model Olympic data.
Compare manual lines of best fit to calculator generated regression lines. First students create a scatter plot of Olympic 100M dash data for men and women. Using the Manual-Fit command, students will draw a line of best fit based on sight. They will use this line to predict future times.
Then, students use the Linear Regression command to compare the line they originally found to the linear regression the calculator finds. Students will hypothesize why the two equations differ.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.