Name_________________________________________ Date____________________ Class___________________

Module 13 and 14 Review

Select the best answer.1. Which of the following data sets is best

described by a linear model?A {(5, 1), (4, 2), (3, 4), (2, 8)}B {(5, 1), (4, 1), (3, 3), (2, 5)}C {(5, 12), (4, 6), (3, 3), (2, 1.5)}D {(5, 1), (4, 0), (3, 1), (2, 4)}

2. Chess club earnings are $40 per month and will increase at a rate of 2.5% each month. Which function describes this situation?

A y 40(0.75)x C y 40(1.025)x

B y 40(0.975)x D y 40(1.25)x

3. Which of the following data sets is best described by a quadratic model?

A {(1, 2), (2, 4), (3, 6), (4, 8)}B {(1, 2), (2, 4), (3, 6), (4, 8)}C {(1, 1), (2, 2), (3, 4), (4, 8)}D {(1, 1), (2, 2), (3, 7), (4, 14)}

4. Which of the following models bestdescribes the data set?{(1, 1), (0, 0), (1, 1), (2, 4)}

A linear C exponentialB quadratic D none

5. The table shows store sales by year. Which function models the data?

Year0 1 2 3

Sales 5000 4000 3200 2560

F y 5000 0.8xH y 5000(0.8)x

G y 5000 1.2x J y 5000(1.2)x

6. Which kind of model best describes the data graphed below?

A linear C exponentialB quadratic D none of these

7. Argyle has $1000 in his savings account.He wants to save more money. He is looking at two investment plans. Under plan A, he will increase his account balance by $200 a year. Under plan B, he will increase his account balance by 15% each year. How much more will he save with Plan B after 10 years?

F $1,046 H $131G $459 J $11

8. Which is the average rate of change overthe interval [0, 4]?Equation A

X 0 2 4 6

Y 0 4 16 36

Equation B

A A: 4, B: 2 C A: 8, B: 16B A: 4, B: 4 D A: 8, B: 4

9. Which kind of model best describes the data set?

© Houghton Mifflin Harcourt Publishing Company

Holt McDougal Coordinate Algebra

Name_________________________________________ Date____________________ Class___________________

X 1 2 3 4Y 0.5 0.25 0.125 0.0625

__________________________________________

10. Determine which kind of model—linear, quadratic, exponential, or square-root—best describes this data set. GRAPH.{(2, 0.75), (1, 1.5), (0, 3), (1, 6), (2, 12)}

11. Which kind of model best describesthe graph?

12. Alistair has $1000 in his savings account.He wants to save more money. He is looking at two investment plans. Under plan A, he will increase his account balance by $300 a year. Under plan B, he will increase his account balance by 25% each year. How much more will he save with Plan B after four years?Round your answer to the nearest whole.__________________________________________

13. What is the average rate of change overthe interval [1, 2]?Equation A

X 1 0 1 2

Y 3 2 3 6

Equation B

__________________________________________

14. Which type of graph would best display the change in the number of student absences over the school year?

A circle C barB line D double-bar

Use the double-bar graph for 15–16.

15. How many people were enrolled in college courses in 1999?

F 100 H 200G 120 J 220

16. In what year was the difference between men’s and women’s enrollment the greatest?

A 2000 C 2002 B 2001 D 2003

Use the stem-and-leaf plot for 17-19.

17. If you organized the data in a frequency table, which could be intervals?

F 70–80 and 80–90G 70–79 and 80–84H 70–79 and 80–89J 70–80 and 81–90

18. What is the median?

© Houghton Mifflin Harcourt Publishing Company

Holt McDougal Coordinate Algebra

Key: 8|0 80

Name_________________________________________ Date____________________ Class___________________

A 72 C 82.5B 80 D 83.2

19. What is the mean? F 72 H 82.5G 80 J 83.2

20.A group of men and women were polled about whether they go to the gym regularly. The joint and marginal relative frequencies corresponding to the results are shown in the two-way table.

Yes No TotalMen 0.4 x 0.6

Women 0.3 y 0.4Total 0.7 0.3 1

Which of these is the value of x?F 1 H 0.2G 0.5 J 0.1

21. Use the two-way table from Question 20.Which of these is the value of y?

A 1 C 0.2B 0.5 D 0.1

22. For the set {1, 1, 2, 4, 5, 6, 7, 8, 10,} which would NOT be affected if another value of 10 was included?

A range C medianB mean D mode

23. Look at the box-and-whisker plot below. Between what values does the middle half of the data fall?

F 12 and 18 H 18 and 26G 12 and 30 J 22 and 30

The low temperatures for Nashville, TN, for October 1–15, 2005, are given below. Use this data for questions 24-27. 24. Complete this frequency table.

25. Use your frequency table in question 25

to make a histogram.

26. Find the mean, median, and mode from #25

mean: _________________

median: ________________

mode: _________________

© Houghton Mifflin Harcourt Publishing Company

Holt McDougal Coordinate Algebra

Name_________________________________________ Date____________________ Class___________________

27. Use the data from #25 to make a box-and- whisker plot.

28. Use this bar graph to identify how many more candies are green than yellow

Men and Women at a shoe store were polled to see if they prefer comfort or fashion. The results of the poll are shown in the two-way table.

Comfort FashionMen 20 3

Women

13 24

29. How many people were polled?

__________________________________________

30. Find the joint relative frequencies & marginal relative frequencies & fill them in the table above.

31. (a) What percent of women prefer fashion? (b) What percent of people prefer comfort?

__________________________________________ _______________________________________

(c) What percent of the people polled were men? (d) If it is given that a person prefers

fashion, what is the probability that the

person is a woman?

_______________________________________ ________________________________

© Houghton Mifflin Harcourt Publishing Company

Holt McDougal Coordinate Algebra

Comfort Fashion

total

MenWomen

total