Lesson Review:

Inequality signs:

Properties of inequality:

Inequalities on a number line:

Solving inequalities:

Graph linear inequalities:

Graph system of linear inequalities (find the overlapping area):

Solve quadratic inequalities:

Extra Resource:

https://www.mathsisfun.com/algebra/inequality-solving.html

https://mathbitsnotebook.com/Algebra1/Inequalities/IQinequalities.html

Homework:

Page 88-92: Chapter 11 Exercise (16 problems)

Something Else:

*I will be back to China from 12/10 to 12/27. Next Sunday (12/15) we will have Mr. Xu (the teacher of AoPS: Precalculus) to teach Ch.12 Word Problems. Thank you, Mr. Xu!

There is no school on 12/22 and 12/29. Merry Christmas and Happy New Year, everyone! See you on 1/5/2020 for our last class before the final exam on 1/12!

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