Scatter Plot & Line of Best Fit Practice

Front

What does the variable 'm' represent in the equation of the line of best fit?

Back

The slope of the line.

Tags

CCSS.8.EE.B.5

Front

What does it indicate if there are too many data points above the line of best fit?

Back

It suggests that the line may not accurately represent the trend of the data.

Tags

CCSS.HSF-LE.A.1B

Front

What are the possible types of slope for a line of best fit?

Back

Positive, negative, or no slope.

Tags

CCSS.8.EE.B.5

Front

How can you identify a negative slope in a line of best fit?

Back

The line descends from left to right.

Tags

CCSS.8.EE.B.5

Front

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

Back

The point where the line crosses the y-axis, indicating the value of y when x is 0.

Tags

CCSS.HSF.LE.B.5

Front

How do you interpret the y-intercept value of 40 in a line of best fit?

Back

It means that when the independent variable (x) is 0, the dependent variable (y) is 40.

Tags

CCSS.HSF.LE.B.5

Front

What is the purpose of a line of best fit in a scatter plot?

Back

To summarize the relationship between two variables and make predictions.

Tags

CCSS.8.EE.B.5

Front

How do you calculate the predicted value using the equation of a trend line?

Back

By substituting the value of x into the equation and solving for y.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Front

In the equation y = 8.77x + 686, what does 8.77 represent?

Back

The slope of the line, indicating how much y changes for a unit change in x.

Tags

CCSS.HSF.LE.B.5

Front

What does the term 'trend line' refer to in statistics?

Back

A line that best represents the data points in a scatter plot.

Tags

CCSS.8.SP.A.2