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The boundary for the graph of a linear inequality is shown. Why can't the origin be used as a test point to decide which side to shade?(GRAPH CAN'T COPY)
because origin lies on the boundary line itself
Algebra
Chapter 3
Graphing Linear Equations and Inequalities in Two Variables; Functions
Section 7
Graphing Linear Inequalities
Graphs and Statistics
Equations and Inequalities
Linear Functions
Systems of Equations and Inequalities
Missouri State University
Campbell University
University of Michigan - Ann Arbor
Lectures
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So if this is the boundary line of a linear inequality, we're not gonna be able to use, um, the origin Azaz test the point because it's actually on the line. So the origin cannot be used a zey test point because it is on yeah, boundary lines.
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