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 write augmented matrices for systems of equations and then solve the system by writing the augmented matrix in reduced row-echelon form.
Problem 1 gives students the opportunity to be walked through the reduced row-echelon form of an augmented matrix to solve a 2 × 2 system of equations.
They use the rref command to confirm their answers and then extract from the matrix the solution to the system.
Students think about the reduced row-echelon form of augmented matrices for systems in which there are infinitely many or no solutions.
In Problem 2, students perform the elementary row operation to reduce the augmented matrix for a 3 × 3 system to reduced row-echelon form. They should check their work with the rref command.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.