Functions and Scatterplots

Front

What is the definition of a function?

Back

A function is a relation where every input has exactly one output.

Tags

CCSS.8.F.A.1

Front

What does a positive relationship in a scatter plot indicate?

Back

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

Tags

CCSS.HSF.IF.B.4

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot.

Tags

CCSS.8.EE.B.5

Front

What does it mean if a line does not go through the middle of the data set?

Back

It means that the line is not accurately representing the trend of the data, and thus is not a line of best fit.

Front

How does the age of a car relate to its value?

Back

As the age of the car increases, its value typically decreases.

Tags

CCSS.HSF-LE.A.1B

Front

What does a scatter plot with a downward trend indicate?

Back

It indicates a negative relationship between the two variables.

Tags

CCSS.HSF-LE.A.1B

Front

If Joe earned $400 and worked 20 hours, what is his hourly wage?

Back

His hourly wage is $20 per hour.

Tags

CCSS.HSF-LE.A.1B

Front

What is the purpose of a scatter plot?

Back

A scatter plot is used to determine the relationship between two quantitative variables.

Tags

CCSS.8.SP.A.1

Front

What does it mean if a scatter plot shows no clear pattern?

Back

It means there is no correlation between the two variables.

Tags

CCSS.HSF-LE.A.1B

Front

What is the x-axis in a scatter plot?

Back

The x-axis represents the independent variable.