Section 7 practice b
- 1. Name ——————————————————————— Date — — — — — — — — — — — — LESSON Practice B 1.7 For use with pages 42248 Graph the ordered pairs. 1. (3, 4), (4, 7), (5, 10), (6, 13), (7, 16) 2. (2, 5), (6, 7), (4, 6), (12, 10), (10, 9) y y 16 16 14 14 12 12 10 10 8 8 6 6 4 4 2 2 O 1 2 3 4 5 6 7 x O 2 4 6 8 10 12 14 x Complete the input-output table for the function. 3. y 5 3x 1 2 4. y 5 4x 2 1 x 0 1 2 3 x 1 2 3 4 y y Graph the function. 1 5. y 5 6 2 x 6. y 5 } x 3 Copyright © by McDougal Littell, a division of Houghton Mifflin Company. Domain: 6, 5, 4, 3, 2 Domain: 6, 9, 12, 15, 18 y y 6 6 5 5 4 4 3 3 2 2 1 1 O 1 2 3 4 5 6 x O 3 6 9 12 15 18 x 7. y 5 4x 2 3 8. y 5 1.2x Domain: 1, 2, 3, 4, 5 Domain: 1, 2, 3, 4, 5 y y 18 6 LESSON 1.7 15 5 12 4 9 3 6 2 3 1 O 1 2 3 4 5 6 x O 1 2 3 4 5 6 x Algebra 1 74 Chapter 1 Resource Book
- 2. Name ——————————————————————— Date — — — — — — — — — — — — LESSON 1.7 Practice B continued For use with pages 42248 Write a rule for the function represented by the graph. Identify the domain and range of the function. 9. y 10. y 11. y 12 18 12 10 15 10 8 12 8 6 9 6 4 6 4 2 3 2 O 1 2 3 4 5 6 x O 1 2 3 4 5 6 x O 1 2 3 4 5 6 x 12. y 13. y 14. y 6 24 6 5 20 5 4 16 4 3 12 3 2 8 2 1 4 1 O 3 6 9 12 15 18 x O 1 2 3 4 5 6 x O 1 2 3 4 5 6 x 15. High Temperatures The table shows the high temperature H High temperature (°F) H (in degrees Fahrenheit) in a city during the week as a 45 function of the number of days d since Monday. Graph the 40 function. Describe how the high temperatures change as the 35 week progresses. 30 Copyright © by McDougal Littell, a division of Houghton Mifflin Company. 25 20 Number of days 0 1 2 3 4 5 0 since Monday, d 0 1 2 3 4 5 d Number of days High temperature since Monday 24 34 41 39 37 39 (degrees Fahrenheit), H 16. Metal Screws The table shows the number of threads per inch on y a screw as a function of screw size. 80 75 Threads per inch 70 Screw size 0 1 2 3 4 5 6 65 number, x 60 Number of threads 55 80 72 64 56 48 44 40 LESSON 1.7 per inch, y 50 45 40 a. Graph the function. 0 0 1 2 3 4 5 6 x b. Describe how the number of threads per inch changes as the Screw size screw size increases. c. Would it be reasonable to expect a #8 screw to have 32 threads per inch? Explain. Algebra 1 Chapter 1 Resource Book 75