Line of best Fit

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot. It shows the trend of the data points.

Front

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

Back

Front

What does the slope of a line represent?

Back

The slope of a line represents the rate of change of the dependent variable (y) with respect to the independent variable (x).

Front

How do you determine the slope from two points?

Back

Front

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations in the data set. It can affect the line of best fit.

Front

How can you identify an outlier on a scatter plot?

Back

An outlier can be identified as a point that lies far away from the cluster of other points on the scatter plot.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to provide a visual representation of the relationship between two variables and to make predictions.

Front

What does a positive slope indicate about the relationship between two variables?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Front

What does a negative slope indicate about the relationship between two variables?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Front

What is the y-intercept in the equation of a line?

Back

The y-intercept is the value of y when x is 0. It represents the point where the line crosses the y-axis.