Unit 6 Review (Functions and scatterplots 8th grade

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for a function.

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for a function.

Front

What does the vertical line test determine?

Back

The vertical line test determines if a graph represents a function; if a vertical line crosses the graph more than once, it is not a function.

Front

What type of association is shown when both variables increase together?

Back

Positive association.

Front

What type of association is shown when one variable increases while the other decreases?

Back

Negative association.

Front

What does it mean if there is no association between two variables?

Back

It means that changes in one variable do not affect the other variable.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables using points.

Front

How can you identify a positive association in a scatter plot?

Back

In a positive association, as one variable increases, the other variable also increases, resulting in an upward trend.

Front

How can you identify a negative association in a scatter plot?

Back

In a negative association, as one variable increases, the other variable decreases, resulting in a downward trend.