Scatter Plot & Line of Best Fit Practice

Front

The type of slope the line of best fit can be classified as _______? (positive, negative, or no)

Back

negative

Tags

CCSS.8.EE.B.5

Front

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

Back

0

Tags

CCSS.HSF.LE.B.5

Front

Using the trendline on the graph, if you are 24 years old, how many emails per day would you expect to send?

Back

about 25

Front

What is the equation of the line of best fit?

Back

y = 5x + 25

Tags

CCSS.8.EE.B.5

Front

Students who miss more class get _______ exam scores.

Back

lower

Tags

CCSS.RI.8.7

CCSS.RI.9-10.7

CCSS.RL.7.7

CCSS.RL.8.7

CCSS.RL.9-10.7

Front

What does a positive slope indicate in a scatter plot?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate in a scatter plot?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.HSF-LE.A.1B

Front

What is a scatter plot?

Back

A graph that shows the relationship between two quantitative variables.

Tags

CCSS.8.SP.A.1

Front

What is the purpose of a line of best fit?

Back

To summarize the trend in a scatter plot and make predictions.

Tags

CCSS.8.EE.B.5

Front

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

Back

By calculating the change in y over the change in x (rise over run).

Tags

CCSS.8.EE.B.5