8th Grade Final Review-Vocabulary

Front

What is a line of best fit?

Back

A line on a scatterplot that helps show the association between data sets more clearly and is used to make predictions.

Front

What is direct variation?

Back

A special type of linear relationship where the ratio of any output value (y) to its corresponding input value (x) is proportional.

Front

What does it mean if a graph shows an upward trend from left to right?

Back

It indicates a positive association where the y-value increases as the x-value increases.

Front

What is an independent variable?

Back

The input variable that does not depend on another quantity or variable, but rather causes corresponding changes to the dependent variable.

Front

What is a proportional relationship?

Back

A linear relationship between two quantities in which one is a constant multiple of the other.

Front

What is a dependent variable?

Back

The output variable that depends on the value of the independent variable.

Front

What is a scatterplot?

Back

A graph that uses dots to represent the values obtained for two different variables, showing the relationship between them.

Front

What does it mean for two quantities to be non-proportional?

Back

It means that the relationship between the two quantities does not maintain a constant ratio.

Front

What is a function?

Back

A relationship or expression involving one or more variables, where each input has exactly one output.

Front

What is the purpose of a graph in data analysis?

Back

To visually represent data to identify trends, patterns, and relationships between variables.