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Linear Functions

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Question
Answer
Extrapolate   To estimate values within a known range by assuming that the estimated value follows logically from the known values.  
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Slope   The rate at which an ordinate of a point of a line with a coordinate plane changes with respect to a change in the abscissa.  
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Y-intercept   the point where the graph of a function intersects with the y-axis of the coordinate system.  
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Regression   When the regression line is linear(y=ax+b), the regression constant(a)that represents the rate of change of one variable (y)as a function of changes in the other (x); it is a slope of the regression line.  
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Linear Function   a first-degree polynomial function of one variable.  
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Interpolate   A method of constructing new data points within a range of a discrete set of known data points.  
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Correlation Coefficient   indicates the strength and direction of a linear relationship between two random variables.  
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Regression Equation   The equation representing the relationship between selected values of one variable(x)and observed values of the other(y); it permits the prediction of the most probable values of y.  
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Residuals   A quantity remaining after other things have been subtracted or allowed for.  
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Best Fit Line   A line on a graph showing the general direction that a group of points seem to be heading.  
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