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| The number that is multiplied by the variable; 3x has a coefficient of 3. |
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| Method of solving a system in which two equations are added together in a manner that will eliminate one of the two variables. |
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| An equation that when graphed will form a line. |
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| An inequality that when graphed will form a line that divides the coordinate plane into a shaded region and unshaded region. |
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| Two lines cross at a point called an intersection. |
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| Two lines that are co-planar and never intersect are called parallel lines. |
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| Two lines that are co-planar and intersect to form four right angles are called perpendicular lines. |
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| The rate at which the y value of a linear function rises or falls as x increases. |
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| A method for solving a system of linear equations in which the equivalent expression of a variable is substituted for that variable into the other equation. |
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| A type of system that has a solution. |
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| A type of system that does not have a solution. |
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Definition
| A type of system that has only one visible line on the graph. |
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Definition
| A type of system that has two visible lines on the graph. |
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Definition
| The point of intersection for a system of equations. |
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