line of best fit

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, showing the trend of the data points.

Tags

CCSS.8.EE.B.5

Front

How do you determine if a line is a good line of best fit?

Back

A good line of best fit minimizes the distance between the line and all data points, showing a clear trend.

Front

What does a positive association in a graph indicate?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.HSF-LE.A.1B

Front

What does a negative association in a graph indicate?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.HSF-LE.A.1B

Front

What does it mean if there is no association in a graph?

Back

There is no clear trend; changes in one variable do not affect the other.

Tags

CCSS.HSS.ID.B.5

Front

What is the equation of a line in slope-intercept form?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.F.A.3

CCSS.8.EE.B.6

Front

What is the slope of a line?

Back

The slope indicates the steepness of the line and the direction of the relationship between variables.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept of a line?

Back

The point where the line crosses the y-axis, represented by the value of b in the equation y = mx + b.

Front

How can you visually assess the accuracy of a line of best fit?

Back

By observing how closely the data points cluster around the line.

Tags

CCSS.8.EE.B.5

Front

What is the purpose of a line of best fit?

Back

To make predictions about one variable based on the value of another variable.

Tags

CCSS.HSF-LE.A.1B