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What to know for the Chapter 13 Quiz
Theorems
 The SlopeIntercept Form of the Equation of a Line (Theorem 118)
 The Equation of a Horizontal Line (Theorem 119)
 The Equation of a Vertical Line (Theorem 120)
Problem Types
 Finding the equation of a line in slopeintercept form
 Graphing a line
 Solving systems of equations using the graphing method
 Solving systems of equations using the substitution method
 Solving systems of equations using the additionsubtraction method
 Graphing inequalities
