SAT!

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What is a system of equations?

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A system of equations is a set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.

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How do you solve a system of linear equations using substitution?

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1. Solve one equation for one variable. 2. Substitute that expression into the other equation. 3. Solve for the remaining variable.

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What is the graphical representation of a linear equation?

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A linear equation can be represented as a straight line on a graph, where the x-axis represents the independent variable and the y-axis represents the dependent variable.

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What does it mean for two lines to be parallel in a system of equations?

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Two lines are parallel if they have the same slope but different y-intercepts, meaning they will never intersect and have no solution.

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What does it mean for two lines to be perpendicular in a system of equations?

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Two lines are perpendicular if the product of their slopes is -1, indicating they intersect at a right angle.

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The solution is (7, 6).

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The value is 2.

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What is the meaning of a slope in a linear equation?

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The slope indicates the rate of change of y with respect to x; it represents how steep the line is.

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What is the y-intercept of a linear equation?

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