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Grade 8 Chapter 4


arithmetic sequence a sequence whose successive terms differ by the common difference
common difference the nonzero constant difference of any term and previous term
continuous graph a graph made up of connected lines or curves
correlation a measure of the strength and direction of the relationship between variables
dependent variable output of a function
discrete graph a graph made up of unconnected points
domain the set of all possible input values of a relation or function
function a relation in which every input is paired with exactly one output
function notation “f of x” where f names the function
function rule a algebraic expression that defines a function
independent variable the input of a function
negative correlation one set of data values increases and the other set decreases
no correlation there is no relation between the set of values
positive correlation both sets of data values increase
range the set of all possible output values of a relation or function
relation a set if ordered pairs
scatter plot a graph with points plotted to show a possible relationship between 2 data sets
sequence a list of numbers that often form a pattern
term each number in a sequence
trend line a line on a scatter plot that show the correlation between the data sets
Created by: bookannelid