Name Class Date Formalizing Relations and Functions Practice 4-6 Form G Identify the domain and range of each relation. Use a mapping diagram to determine whether the relation is a function. {(3, 6), (5, 7), (7, 7) (8, 1. {(0, 0.4), (1, 0.8), (2, 1.2), (3, 1.6)} 9)} 2. {(0.3, 0.6), (0.4, 0.8), (0.3, 0.7), (0.5, 4. { (5, (3, (4, (6, 4)} 3. –4), –5), –3), 0.5)} Use the vertical line test to determine whether the relation is a function. 5. 6. The function = 60x represents the number of words you can 7. w(x) w(x) type in minutes. How many words can you type in 9 minutes? x Sound travels about 343 meters per second. The function = 343t 8. d(t) gives the distance in meters that sound travels in seconds. How d(t) t far does sound travel in 8 seconds? Prentice Hall Gold Algebra 1 Teaching Resources • Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved.
Name Class Date 4-6 Formalizing Relations and Functions Practice Form G Identify the domain and range of each relation. Use a mapping diagram to determine whether the relation is a function. 1. {(3, 6), (5, 7), (7, 7) (8, 9)} 2. {(0, 0.4), (1, 0.8), (2, 1.2), (3, 1.6)} 3. { (5, –4), (3, –5), (4, –3), (6, 4)} 4. {(0.3, 0.6), (0.4, 0.8), (0.3, 0.7), (0.5, 0.5)} Use the vertical line test to determine whether the relation is a function. 5. 6. 7. The function w(x) = 60x represents the number of words w(x) you can type in x minutes. How many words can you type in 9 minutes? 8. Sound travels about 343 meters per second. The function d(t) = 343t gives the distance d(t) in meters that sound travels in t seconds. How far does sound travel in 8 seconds? Prentice Hall Gold Algebra 1 • Teaching Resources Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved.