Linear Relationships in Scatterplots

The scatterplot shows the number of people in each of 8 different households and the average amount of money each household spent on groceries.

Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household that has 7 people?

• $240

• $190

• $210

• $300

• 115

• -.6

• -115

• .6

• F

• G

• H

• J

y/x. Then match the graph.

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The scatterplot shows the time spent playing a video game and the number of points scored by several students.

Based on the scatterplot, which is the best prediction of the number of points scored by a student who spends 45 minutes playing the video game?

• 1,200

• 920

• 1,060

• 1,300

• A

• B

• C

• D

What is the y-intercept for the following table and is it proportional or non-proportional?

• Proportional, y-intercept is 0

• Non-proportional, y-intercept is 0

• Proportional, slope is 0

• Non-proportional, slope is 0

y/x Then math the graph

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What type of association does this graph have?

• positive

• negative

• none

• all of the above