Solving Equations and Inequalities by graphing

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What is an absolute value equation?

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What does it mean when a system of linear equations has no solutions?

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A system of linear equations has no solutions when the lines representing the equations are parallel and never intersect.

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What is an absolute value inequality?

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An absolute value inequality is an inequality that contains an absolute value expression, indicating a range of values that satisfy the inequality.

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What is a linear equation?

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What does it mean for a system of equations to have infinitely many solutions?

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A system of equations has infinitely many solutions when the equations represent the same line, meaning every point on the line is a solution.

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