Linear Functions and Modeling

relationship between two variables

value between –1 and 1, inclusive, that indicates the strength and direction of the correlation of a line of best fit

predicting a data value outside the set of given data points

predicting a data value between given data points

line that minimizes the sum of the squared distances to all points in a scatterplot

function whose graph is a line

statistical method that calculates the line of best fit for a given set of data points

vertical change between two points on a line

horizontal change between two points on a line

data display consisting of the graph of a set of ordered pairs

ratio of the change in $y$ to the change in $x$ for two points on a line, represented as:

transformation in which a graph is moved vertically or horizontally

value of $y$ where a graph touches or crosses the $y$ -axis