For a complete lesson on graphing linear inequalities, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to graph inequalities in two variables. For example, to graph y is less than x + 2, the first step is to graph the boundary line y = x + 2, using the chart method from lesson 4B. Note that greater than or less than means that the boundary line will be dotted, and greater than or equal to or less than or equal to means that the boundary line will be solid. To determine which side of the boundary line to shade, substitute a test point, such as (0, 0), into the original inequality, y is less than x + 2. Since (0) is less than (0) + 2, or 0 is less than 2, is a true statement, the side of the line that contains the point (0, 0) is shaded.
Tagged under: Graphing,Linear,Inequalities,Two,Variables,inequality,math,graph
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
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4. You review and reflect
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Clip
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Kathryn Laster
- GaFE Certified Trainer
@kklaster
Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech
Room 220 Math Stars
@3rdgradeBCE
Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.
Miss Ord
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Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!
Dr Ayla Göl
@iladylayla
A good tool for supporting active #learning.
Brett Erenberg
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