Unit 3 Linear Trends and Systems Review 8th

Mrs. Collins made a scatter plot to show the relationship between the number of absences a student in her class has and the student’s final exam score. Based on this scatterplot, approximately what score should a student with 6 absences expect to receive on the final exam?

• 65

• 92

• 67

• 76

The scatterplot below shows the costs of new homes in a Small Town, Texas over the last seven years. Based on this scatterplot, what would be a good prediction for the cost of a new home built in 2008?

• $180

• $180,000

• $125,000

• $210,000

Which term best describes a scatterplot with a clear upward trend and closely packed data points?

• Linear and strong positive

• Linear and weak positive

• Non-linear and strong positive

• No correlation

What conclusion is best supported by the scatterplot?

• There is no relationship between the days and the weight.

• As the days increase, the weight decreases.

• As the days decrease, the weight increases.

• As the days increase, the weight increases.

Based on this scatterplot, approximately what selling price should an owner of a 4-year-old car expect?

• $6,500

• $8,500

• $10,750

• $12,500

Which of the following would be the best estimate for the line of best fit (trend line) for the points?

• A

• B

• C

• D

Which point best represents the solution to the system of linear equations shown in the graph below?

• A. (2, 1)

• B. (1, 2)

• C. (1, 0)

• D. (0, 3)

Which ordered pair represents a solution to both equations?

• (-4, 0)

• (-3, 3)

• (3, -3)

• (0, 4)

Which ordered pair represents a solution to both equations?

• (-4, 3)

• (-3, -4)

• (4, -3)

• (-3, 4)

The captain of a basketball team created a scatterplot of each team member’s average points scored per game as a function of the players’ heights in centimeters. Select the region on the graph where the data exhibit clustering.

• Top left

• Middle

• Bottom left

• Bottom right