Chapter 7 cover solving systems of equations. The first two topics cover solving systems of linear equations, first, the [latex]2 \times 2[/latex] case, and then the [latex]3 \times 3[/latex] case. Solutions are found purely by elementary algebraic operations. No attempt is made here to make deeper connections to the study of liner algebra. The third topic Solving Systems of Non-Linear Equations examines the intersection of conic sections, and familiarity with the equations of the circle, ellipse, parabola and ellipse is assumed.
Precalculus by Mike Weimerskirch and the University of Minnesota Board of Regents is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.