Homework Log Wed 9/30 Lesson 2 – 1 Learning Objective: To find solutions of equations Hw: #201 Pg. 101 #1 – 31 odd.

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Presentation transcript:

Homework Log Wed 9/30 Lesson 2 – 1 Learning Objective: To find solutions of equations Hw: #201 Pg. 101 #1 – 31 odd

9/30/15 Lesson 2 – 1 Solutions of Equations Day 1 Advanced Math/Trig Ch 2 TEST on Tues 10/27

Learning Objective To find solutions of equations To be aware of extraneous solutions

1. 3(2x – 1) – 2(3x + 4) = 11x 6x – 3 – 6x – 8 = 11x - 11 = 11x x = – 1 {–1} Solve a Multi-Step Equation

3. 6x + 5 – 2x = 4 + 4x + 1 4x + 5 = 4x x = 4x -4x - 4x 0 = 0 ALWAYS TRUE!!! Infinite Solution!!{R} Solve a Multi-Step Equation

Solve a Rational Equation (y-1)(y-2) mult by common denom BUT, 2 makes denom = 0 So, NO SOLUTION 4.

Solve a Rational Equation LCD: 3(x + 1)

Always get the absolute value by ITSELF before splitting it up and solving!!

Multi-Step Absolute Value Equation

Absolute Value Equations

Extraneous Solution – Extra, but wrong answer ALWAYS plug your answers back into the ORIGINAL equation to CHECK !!

Extraneous Solutions

Check for Extraneous Solutions

Extraneous Solutions

Ticket Out the Door

Homework #201 Pg – 31 odd