Page 52 - Math Course 1 (Book 1)

Algebraic Functions and Relations

Inverse: Each X and Y in each ordered pair to B.
write the inverse relation.
05
98
Answer {(1, 5), (2, 7), (-9, 4), (2, 0)} 94

90
86

Your Turn! 0 500 1000 1500 2000 2500

Use a Relation C. 2500

Endangered Species
2000
The table shows the approximate
world population of the Indian
Rhinoceros from 1986 to 2005. 1500

Determine the domain and range for the data
provided in the table. 1000
86 90 94 98 05
Indian Rhinoceros Population

Year D.
1986 1990 1994 1998 2005
2500
Population
1000 1700 1900 2100 2400
2000
A. D = {1000, 3700, 3900, 2300, 2400}; 1500
R = {1986, 1990, 1994, 1998, 2005}
1000
B. D = {5}; 500
R = {4}
0
86 90 94 98 05
C. D = {1986, 1990, 1994, 1998, 2005};
R = {1000, 1700, 1900, 2100, 2400}

D. D = {2005}; Answer
R = {2400}
What conclusions might you make from the graph
of the data?
Answer
A. The population of the Indian rhinoceros has
been decreasing since 1986.
Graph the data.
B. The population of the Indian rhinoceros has
been increasing since 1986.
A. C. The population of the Indian rhinoceros has
2500 stayed the same since 1986.
D. The Indian rhinoceros has become extinct.
2000
1500 Answer
1000

500
0
86 90 94 98 05

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