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Key terms from the TEKS in Category 2

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Term
Definition
Attributes   A quality or feature regarded as a characteristic of something; A property  
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Linear function   An equation that makes a straight line when graphed; Possesses a constant rate of change or slope  
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Quadratic function   An equation where the highest exponent of the variable (usually x) is squared (power of 2)  
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Parent function   A basic function that is the building block form more complicated functions (y = x; y = x^2)  
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Domain   The values that go INTO a function (x values)  
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Range   The output values of a function (y values)  
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Continuous Data   Data that can be any value (Ex: A person's height can be any positive real number)  
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Discrete Data   Data that can only have certain values (Ex: The number of students can only be positive whole numbers - can have 1/2 a student or negative students)  
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Scatter Plot   A graph of plotted points that show the relationship between two sets of data  
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Positive Correlation   When BOTH the x values and the y values INCREASE  
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Negative Correlation   When the x values increase, the y values decrease  
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No Correlation   When no relationship exists between the data sets  
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Line of Best Fit   The line closest as possible to all points in a data set  
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