8th Grade Final Review-Vocabulary

Front

What is a linear relationship between two quantities where one is a constant multiple of the other?

Back

Proportional relationship

Front

What type of graph shows a decrease in y-values as x-values increase?

Back

A graph that slopes downward from left to right.

Front

What type of graph shows an increase in y-values as x-values increase?

Back

A graph that slopes upward from left to right.

Front

What does it mean when data points are clustered loosely and more spread out in a graph?

Back

The Mean Absolute Deviation (M.A.D.) is larger.

Front

What type of graph demonstrates no pattern in the observed data?

Back

A random scatter plot.

Front

Define 'function' in mathematical terms.

Back

A relation where each input has exactly one output.

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio, while non-proportional do not.

Front

What is the definition of 'equivalent ratios'?

Back

Ratios that express the same relationship between numbers.

Front

What is the Mean Absolute Deviation (M.A.D.)?

Back

A measure of the average distance between each data point and the mean.

Front

How can you identify a proportional relationship from a table of values?

Back

If the ratios of corresponding values are constant.