Ch. 3.1-3.3 Test Outline

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2.6 Special Functions

  • Piecewise Functions
    • Graph.
    • Domain and Range.

3.1 Solving Systems Of Equations By Graphing

  • Spot the intersections.
  • Three types of solutions (know the vocabulary):
    • Inconsistent: parallel lines, no solution
    • Consistent and dependent: same line, infinite solutions
    • Consistent and independent: single solution at intersection
  • Identify the type of solution algebraically by putting equations into the same form.

3.2 Solving Systems Of Equations Algebraically

  • Solve with substitution.
  • Solve with multiplication then elimination.
  • Recognize the three types of solutions when solving by elimination.

3.3 Solving Systems Of Inequalities By Graphing

  • Graph inequalities to find intersecting regions.
  • Recognize when there are no intersecting regions.
  • Write simple systems of inequalities.
  • Graph then find vertices algebraically using substitution or elimination.
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