Page 50 - Math Course 1 (Book 1)

Algebraic Functions and Relations

Your Turn!

Represent a Relation

Express the relation {(3, –2), (4, 6), (5, 2), (–1, 3)} Determine the domain and range of the relation
as a mapping. {(3, –2), (4, 6), (5, 2), (–1, 3)}.

A. D. X Y A. D = {–1, 3, 4, 5}; R = {–2, 2, 3, 6}
X Y
B. D = {–2, 2, 3, 6}; R = {–1, 3, 4, 5}
-2 3
3 -2
6 4 C. D = {–1, 3}; R = {–2, 2}
2 5
4 6 D. D = {4}; R = {4}
3 -1
5 2

-1 3 Answer

B. y

o x MO. 1 - L9b

Inverse of a Relation

C. X Y Vocabulary A-Z
Let us learn some vocabulary
3 -2
4 6
5 2
-1 3

Inverse

is obtained by switching the coordinates in each
ordered pair.

Answer Inverse of
Relation
Relation
{(0, 2), (-5, 4)} {(2, 0), (4, -5)}

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