Education Technology

Precalculus: Parabolas and Matrices
by Texas Instruments

Published on November 28, 2011


  • Students will be able to input their data into matrices and perform calculations on them.
  • Students will be able to interpret the results of their calculations.
  • Students will utilize different methods to check the results of their calculations and to verify their solutions.


  • identity matrix
  • inverse matrix
  • matrix
  • matrix equation
  • parabola
  • system of equations

About the Lesson

This lesson involves using matrices to solve a system of three simultaneous linear equations.
As a result, students will:

  • Use matrices to write an equation for a parabola that passes through three given points.
  • Input their own matrices to solve problems that are similar to those outlined above.