Algebra Diagnostic

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2

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14

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18

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What does it mean if a system of equations has infinite solutions?

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It means that the equations represent the same line, and there are infinitely many points that satisfy both equations.

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x = 19.5

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Define a linear equation.

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What is the slope-intercept form of a linear equation?

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How do you isolate a variable in an equation?

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To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.

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2

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What does it mean for an equation to have no solution?

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It means that there are no values for the variables that can satisfy the equation, often because the lines represented by the equations are parallel.