1. Splash Screen

2. Five-Minute Check (over Lesson 1–5) Then/Now New Vocabulary
Example 1: Construct a Scatter Plot
Key Concept: Types of Relationships
Example 2: Interpret Scatter Plots
Example 3: Real-World Example: Analyze Scatter Plots
Lesson Menu

3. Complete the function table. State the domain and range
Complete the function table. State the domain and range. A Ferris wheel revolves 12 times each minute.
A. D = {3, 6, 9, 12} R = {36, 72, 108, 144}
B. D = {36, 72, 108, 144} R = {3, 6, 9, 12}
C. D = {1, 2, 3, 4} R = {36, 72, 108, 144}
D. D = {1, 2, 3, 4} R = {12, 24, 36, 48} A B C D
5-Minute Check 1

4. Which expression can be used to find the number of quarts in any number of gallons?
B. 4q = g
C. q = 4g
D. 16q = g A B C D
5-Minute Check 2

5. Which expression can be used to represent fourteen less than twice the width?
A. 14 – 2 + w
B. 14 – 2w
C. 2w + 14
D. 2w – 14 A B C D
5-Minute Check 3

6. Construct scatter plots.
You have already graphed ordered pairs and relations on a coordinate system. (Lesson 1–4)
Construct scatter plots.
Analyze trends in scatter plots.
Then/Now

7. scatter plot
Vocabulary

8. Construct a Scatter Plot
BREAD The table shows the average cost of a loaf of bread from 1920–2000. Make a scatter plot of the data.
Let the horizontal axis, or x-axis, represent the year. Let the vertical axis, or y-axis, represent the cost.
Example 1

9. Graph the ordered pairs (year, cost).
Construct a Scatter Plot
BREAD The table shows the average cost of a loaf of bread from 1920–2000. Make a scatter plot of the data.
Answer:
Graph the ordered pairs (year, cost).
Example 1

10. BIRTH STATISTICS The table shows the number of babies born at Central Hospital during the past eight months. Make a scatter plot of the data.
A. B.
C. D. A B C D
Example 1

11. Concept

12. As the height increases, the number of rebounds increases.
Interpret Scatter Plots
Determine whether a scatter plot of the height of a basketball player and number of rebounds might show a positive, negative, or no relationship. Explain your answer.
As the height increases, the number of rebounds increases.
Answer: positive relationship
Example 2

13. Determine whether a scatter plot of the outside temperature and the heating bill might show a positive, negative, or no relationship. Explain your answer.
A. As the outside temperature decreases, the heating bill will increase. This is a negative relationship.
B. As the outside temperature decreases, the heating bill will increase. This is a positive relationship.
C. As the outside temperature increases, the heating bill will increase. This is a negative relationship.
D. Outside temperature and heating bill have no relationship. A B C D
Example 2

14. Analyze Scatter Plots
A. TEMPERATURE The table shows temperatures in degrees Celsius and the corresponding temperatures in degrees Fahrenheit. Make a scatter plot of the data.
Let the horizontal axis represent degrees Celsius and the vertical axis represent degrees Fahrenheit.
Graph the data.
Example 3

15. Answer: A positive relationship is shown. As °C increase, so do °F.
Analyze Scatter Plots
B. Draw a conclusion about the type of relationship the data shows. Explain.
Answer: A positive relationship is shown. As °C increase, so do °F.
Example 3

16. C. Predict the Fahrenheit temperature for 35°C.
Analyze Scatter Plots
C. Predict the Fahrenheit temperature for 35°C.
By looking at the pattern on the graph, we can predict that the Fahrenheit temperature corresponding to 35°C would be about 95 degrees.
Answer: 95°F
Example 3

17. A. STUDY SKILLS The table shows hours spent studying for a test and the corresponding test score. Make a scatter plot of the data.
A. B.
C. D. A B C D
Example 3

18. B. STUDY SKILLS The table shows hours spent studying for a test and the corresponding test score. Does the scatter plot show a relationship between hours studied and a student’s test score? A B C D
A. Yes, a positive relationship exists.
B. Yes, a negative relationship exists.
C. No, no relationship exists.
D. none of the above
Example 3

19. C. STUDY SKILLS The table shows hours spent studying for a test and the corresponding test score. Predict the test score for a student who spends 7 hours studying.
A. between 65 and 70
B. between 75 and 80
C. between 95 and 100
D. between 105 and 110 A B C D
Example 3

20. End of the Lesson

21. End of Custom Shows