Monthly Archives: February 2008

Algebra: Chapter 9-6 Review, p 421 We reviewed the problems from 9-6 again after taking Quiz 17/18. Lesson 6 is just like lesson 5, except we plot 2 inequalities on 1 graph. Where the 2 lines overlap is the solution … Continue reading →

Algebra: Chapters 9-5 and 9-6 (Friday and Monday), p 417 and 421 Inequalities in 2 variables and Graphing Systems of Linear Inequalities Inequalities in 2 variables (e.g., `2x – y > 5`) can be solved just like the equation `2x … Continue reading →

Algebra: Chapter 9-4, p 413 (Thursday) Inequalities and Absolute Value We do the same thing as yesterday’s lesson. We find the 2 equations to solve. There are 2 differences however: If the equation is of the form  `|A| ≤ b`, … Continue reading →

Algebra: Chapter 9-2, p 405 Compound Sentences A sentence like `x>5 and x ≤ 12` is called a conjunction. A conjunction of 2 statements is formed by connecting them with the word “and”. A conjunction is true when both statements … Continue reading →

Day 77 – Friday, February 1 Algebra: Chapter 9, Lesson 1, p 400 Sets, Intersections and Unions A set is a well-defined collection of objects called members or elements Roster notation LISTS the members of the set. Set-Builder Notation gives … Continue reading →