Inequalities Part 1 - Intro
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Lesson Summary:
This lesson is an introduction to linear inequalities. The instructor explains the symbols for less than, less than or equal to, greater than, and greater than or equal to. They then demonstrate how to graph true inequality statements and provide helpful tips for solving problems where the variable is on the right-hand side. The lesson also covers sandwiching a variable between two numbers and graphing those solutions.
Lesson Description:
Introduction to Linear Inequalities
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- What is a linear inequality?
- What do the symbols for inequality mean?
- What does <, >, <=, and >= mean?
- How do you graph linear inequalities on a number line?
- How do you graph x = 2 on a number line?
- How do you graph x < 2 on a number line?
- How do you graph x <= 2 on a number line?
- How do you graph x > -1 on a number line?
- How do you graph x >= -1 on a number line?
- How do you know when to draw an open or a closed circle on your starting point when graphing an inequality on a number line?
- How do you know which way the arrow of an inequality is supposed to point when graphing an inequality on a number line?
- How do you graph 2 < x on a number line?
- How do you graph -3 >= x on a number line?
- How do you change an inequality so the variable is on the left side of the inequality sign?
- How do you graph a compound inequality on a number line?
- How do you graph -2 <= x < 1 on a number line?
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Staff Review
This is a very basic introduction to inequalities. This lesson starts a student off from the very basics of inequalities and graphing them on a number line. Whether the starting point should be a closed or open circle and which way to point the arrow is also discussed. This video is an excellent tutorial for learning inequalities.
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