Scatterplots

Front

What are the x-values of a function called?

Back

The domain.

Front

What is the range of a function?

Back

The y-values.

Front

What does a line of best fit represent in a scatter plot?

Back

It shows the general direction of the data points.

Front

What is an outlier in a scatterplot?

Back

A point that is far outside the main cluster of points/ordered pairs.

Front

How do you find the slope of a line using two points?

Back

Slope = (y2 - y1) / (x2 - x1).

Front

What does a positive slope indicate in a scatter plot?

Back

As x increases, y also increases.

Front

What does a negative slope indicate in a scatter plot?

Back

As x increases, y decreases.

Front

What is the purpose of a scatter plot?

Back

To show the relationship between two quantitative variables.

Front

What does the term 'trend line' refer to?

Back

A line that best represents the data in a scatter plot.

Front

What is the formula for calculating the slope between points (2,2) and (4,3)?

Back

Slope = (3 - 2) / (4 - 2) = 1/2.