Scatter Plots Trend Lines Equation

A group of hikers is descending, and the elevation of several of the hikers after a certain number of minutes is shown in the scatter plot. True or False: The group of hikers descends about 250 feet every minute. Hint: What's the unit rate, slope?

• True

• False

Tags

CCSS.HSF.LE.B.5

A group of hikers is descending, and the elevation of several of the hikers after a certain number of minutes is shown in the scatter plot.

True or False:

As time increases, the elevation increases.

• True

• False

Tags

CCSS.HSF.LE.B.5

A group of hikers is descending, and the elevation of several of the hikers after a certain number of minutes is shown in the scatter plot.

True or False:

The graph shows a negative association.

• True

• False

What is another term for trend line?

• Straight line

• Linear

• Line of Best Fit

How do I determine the y-intercept of the trend line from a graph?

• look where the line crosses the y-axis

• use the slope formula

Tags

CCSS.8.EE.B.5

A group of hikers is descending, and the elevation of several of the hikers after a certain number of minutes is shown in the scatter plot.

True or False:

There are several outliers in the scatter plot.

• True

• False

When scatter plots demonstrate a linear relationship, a(n) ​ (a)   line can be used to show the general pattern of the data.

• straight

• points

• outlier

• association

• cluster

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

Tags

CCSS.HSF-LE.A.1B

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

Tags

CCSS.8.EE.B.5

A small theme park is trying to determine the number of guests they should expect on a weekend, based on the temperature outside.  Based on the trend line, about how many guests should be expected if the temperature is around 80°?

• 8,300

• 8

• 7,300

• 9,300