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Absolute Value Inequality Graphs in Two Variables  Problem 4
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
To graph an absolute value inequality, start by pretending like the inequality sign was an equals sign and graph the "v" shape as you would have a regular equation. Then, if the inequality is < or >, you'll need to make your "v" dashed lines. If the inequality is <= or >= , you can leave your lines as solid lines. Your last job is going to be to shade either inside or outside the "v" the shaded region needs to represent the area of the graph where the solution, or "true" points are. Pick any test point that is not on the v and plug in those x and y values to test the inequality. If you get a true inequality, then shade where that point was if you get a false inequality, then shade away from that test point.
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Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Sample Problems (4)
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Absolute Value Inequality Graphs in Two Variables
Problem 1 8,972 viewsGraph:
y > x − 2 
Absolute Value Inequality Graphs in Two Variables
Problem 2 5,688 viewsMake a table and graph:
2y ≥ 4x 
Absolute Value Inequality Graphs in Two Variables
Problem 3 5,044 viewsMake a table and graph:
y < x + 2 
Absolute Value Inequality Graphs in Two Variables
Problem 4 957 views
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