Line of best Fit

Front

What is the equation of the line of best fit?

Back

Front

What does a positive correlation indicate in a scatter plot?

Back

A positive correlation indicates that as one variable increases, the other variable also increases. This is represented by an upward slope in the scatter plot.

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable decreases. This is represented by a downward slope in the scatter plot.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no discernible relationship between the two variables. The data points are scattered randomly.

Front

How do you approximate the slope of a line of best fit?

Back

The slope of a line of best fit can be approximated by selecting two points on the line and using the formula: slope = (change in y) / (change in x).

Front

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

Back

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

Front

What is the general form of a linear equation?

Back

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Back

Front

If the slope of a line is 0, what does that indicate about the line?

Back

If the slope of a line is 0, it indicates that the line is horizontal, meaning there is no change in y as x changes.

Front

What is the purpose of a line of best fit in data analysis?

Back

The purpose of a line of best fit is to summarize the relationship between two variables and to make predictions based on that relationship.