Algebra 1 exam study guide – Flashcards
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Linear function
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A function whose graph forms a straight line
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Linear equation
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Any equation that can be written in the standard form
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Y-intercept
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The y-coordinate of the point where the graph intersects the y-axis
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X-intercept
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The x-coordinate of the point where the graph intersects the x-axis
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Rate of change
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A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable
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Rise
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The difference in the y-values of two points on a line
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Run
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The difference in the x-values of two points on a line
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Slope
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Ratio of rise to run for any two points on the line
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Midpoint
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The point that divides the segment into two congruent segments
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System of linear equations
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A set of two or more linear equations containing two or more variables
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Solution of a system of linear equations
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An ordered pair that satisfies each equation in the system
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Consistent system
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A system with at least one solution
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Inconsistent system
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A system that has no solution
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Independent system
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Has exactly one solution
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Dependent system
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Infinitely many solutions
