Unit 3

Systems of Linear Equations and Inequalities

Systems of two linear equations by substitution and elimination, their geometric discussion, and systems of linear inequalities.

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Systems of Linear Equations and Inequalities

Learning Objectives

  • Solve a system of two linear equations by substitution and by elimination.
  • Interpret a system geometrically and classify it as determinate, indeterminate, or incompatible (intersecting, coincident, or parallel lines).
  • Solve systems of linear inequalities and describe the feasible region.

About This Course Unit

Systems of two first-degree equations in two unknowns, solved by substitution and elimination and read as configurations of two lines, then systems of linear inequalities and the feasible region in the plane.

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