Scatter Plots Test Review

Which scatterplot suggests a linear relationship between x and y?

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Larry and Raymond were cutting boards to make a porch. Larry started with a 10 ft board and cut x feet. Raymond started with a 16 ft board and cut twice as much as Larry did. How many feet of the board was left if they both had the same size board remaining.

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

Ben collected data from a group of 12 people. He measured each person’s resting heart rate and recorded the average number of hours each person exercised per week. He created a scatterplot to show the data he collected.

Based on the scatterplot, what is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of 8 hours each week?

• 30 beat

• 50 beats per minute

• 55 beats per mi

• 60 beats per minute

The scatter plot below shows the monthly heating bill cost for the Herrera family compared to the average temperature per month.

Which statement best describes the trend for the scatter plot?

• A Negative: The lower the average monthly temperature, the lower the monthly heating bill.

• B Negative: The lower the average monthly temperature, the higher the monthly heating bill.

• C There is no correlation between the average monthly temperature, and the monthly heating bill.

• D The higher the average temperature, the higher the monthly heating bill.

The scatterplot shows the average number of hours each of 13 people spends at work every week and the average number of hours each of them spends on recreational activities every week.

Based on the scatterplot, what is the best prediction of the average number of hours a person spends at work every week if that person spends an average of 10 hours on recreational activities every week?

• 33 h

• 85 h

• 50 h

• 65 h

The manager of a restaurant recorded how many people were in different groups of customers and how much those groups spent on food and beverages. The scatterplot below shows the data she recorded.

Based on this scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant?

• $135

• $115

• $105

• $150

Which function is best represented by the graph?

The scatter plots below show the relationship between the age of a car and it’s depreciation in value.

Which scatter plot best represents the relationship of the value of a car depreciating as the age of the car increases?

• Graph A only

• Graph B and C

• Graph C only

• Graph D only