Algebra 2Friday, October 17, 2014 Complete Warm-ups Slide (see page 2 of this packet) Check in and discuss A#3.1 Discussion/Notes/Guided Practice Section.

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Algebra 2Friday, October 17, 2014 Complete Warm-ups Slide (see page 2 of this packet) Check in and discuss A#3.1 Discussion/Notes/Guided Practice Section 3.2 Part 1: Solving Systems of Equations by Substitution Homework: A#3.2 page 127 #1-4; 12-17; 24, 25

A#3.1 pg 120 #2-26 even; all 2. (2, 2)4. (1, -2)6. The price is $6.75 for 27 photos at both stores 8. Consistent and Independent10. Consistent and Dependent 12. (4, 1)14. (5, 3)16. (3.5, 0)18. (4, 2)20. (-3, 0) 22. Consistent and dependent24. Consistent and dependent 26. (1, 3); (2, -1); (-2, -3) 27. Supply 200, Supply 300,000 Demand 300,000 Demand 200,000 Prices will tend to rise Prices will tend to fall ,000; $10

After this section, you will be able to: Solve a system of equations by substitution Success Criteria: Q&A Guided Practice Homework

Warm ups:

Example #1: Solving by Substitution Substitution Method: 1.One equation is solved for one variable in terms of the other. 2.This expression is substituted for the variable in the other equation.

Guided Practice Solving by Substitution

Example #2: Test Practice Lancaster Woodworkers Furniture Store builds two types of wooden outdoor chairs. A rocking chair sells for $265 and an Adirondack chair with footstool sells for $320. The books show that last month the business earned $13,930 for the 48 outdoor chairs sold. How many rocking chairs were sold?

Guided Practice #2: Test Practice Dante spent $11.25 on 3 new and 4 old comic books, and Samantha spent $15.75 on 10 old and 3 new ones. If comics of one type are sold at the same price, what is the price in dollars of a new comic book?