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Notes P.3 – Linear Equations and Inequalities

Notes P.3 – Linear Equations and Inequalities. I. Properties of Equality:. Let u, v, w, and z be real numbers, variables, or algebraic expressions. II. Confirming Solutions. A. Substitution – NEVER PLUGGING IT IN !!!! B. Graphically. III. Solving ax +b = c.

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Notes P.3 – Linear Equations and Inequalities

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  1. Notes P.3 – Linear Equations and Inequalities

  2. I. Properties of Equality: Let u, v, w, and z be real numbers, variables, or algebraic expressions

  3. II. Confirming Solutions A. Substitution – NEVER PLUGGING IT IN !!!! B. Graphically

  4. III. Solving ax +b = c A. By Hand – Isolate the variable and coefficent B. By TI-83+/84 1.) Y1 = ax+b 2.) Y2 = c 3.) GRAPH – 2nd CALC – INTERSECT – ENTER – ENTER - ENTER

  5. IV. Properties of Inequalities: Let u, v, w, and z be real numbers, variables, or algebraic expressions

  6. V. Solving Linear Inequalities A. By Hand – Same as III B. By TI-83+/84 – Same as III

  7. VI. Solving Double Inequalities A. Work both simultaneously! B. Example -

  8. VII. Quick Review Complete the in-class worksheet.

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