IXL | Identify lines of best fit

Which graph shows the line of best fit for the data?

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question

Which graph shows the line of best fit for the data?

key idea

A line of best fit roughly describes the relationship in a scatter plot. It follows the general trend in the data, and about the same number of points should be above the line as there are below the line.

solution

This graph shows the line of best fit. The line follows the general trend in the data, and there are about as many points above the line as there are below the line.

The other graphs do not show the line of best fit.

In this graph, the line does not follow the general trend in the data. The line has a negative slope, but the points in the scatter plot trend upward.

In this graph, the line follows the general trend in the data, but there are too many points below the line.

In this graph, the line does not follow the general trend in the data. The line has a negative slope, but the points in the scatter plot trend upward.

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Lesson: Line of best fit

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II.5Identify trends with scatter plots

Lesson: Line of best fit

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