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7 
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the ordered pair that is a solution to all inequalities in the system and the graph of the linear inequality is the graph of all solutions of the system 
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9 
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an expression constructed from a set of terms by multiplying each term by a constant and adding the results (e.g. a linear combination of x and y would be any expression of the form ax + by, where a and b are constants). 
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11 
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 says that two values are not equal. 
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13 
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a statement that the values of two mathematical expressions are equal (indicated by the sign =). 
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14 
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specific form of linear equations with the following structure  y=mx+b 
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15 
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Two or more equations working together. Example: x + y = 6 and −3x + y = 2 
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16 
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a point on the graph where y is zero 
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17 
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a numerical or constant quantity placed before and multiplying the v 
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19 
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The value where a straight line crosses the Y axis of a graph 
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20 
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How far a number is from zero.  Example '6' is 6 away from zero, but '−6' is also 6 away from zero. 
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21 
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 a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised  
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22 
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Two numbers written in a certain order.  Usually written in parentheses like this: (4,5)  Coordinates a set of values that show an exact position. 
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23 
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 How far a line goes along (for a given distance going up). 
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24 
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 A value we can put in place of a variable (such as x) that makes the equation true. 
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