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

How do you determine the line of best fit visually?

Back

You can determine the line of best fit visually by drawing a line that has approximately equal numbers of points above and below it.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to make predictions about the data and to understand the relationship between variables.

Front

What does a positive slope in a line of best fit indicate?

Back

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

Front

What does a negative slope in a line of best fit indicate?

Back

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

Front

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

Back

Front

How can you find the slope of the line of best fit?

Back

Front

What is the y-intercept in the context of the line of best fit?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x is zero.

Front

What does it mean if a line of best fit has a slope of zero?

Back

A slope of zero means that there is no relationship between the variables; the line is horizontal.

Front

How do you assess the accuracy of a line of best fit?

Back

The accuracy can be assessed by looking at how closely the data points cluster around the line.