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13 In secondary school the word "relation" is used to describe a set of ordered pairs. In (a) and (b) examine the following ordered pairs of numbers, where the first coordinate is the x value and the second coordinate is the associated y value. In each case, explain why y is not a func- tion of x. (a) {(1, 2), (1, 3), (1, 4)} (b) {(-2, 1), (3, 2), (4, 3), (3, 1)} (c) Using the fourth method of representing functions described in this section, draw the picture that represents each of the relations from (a) and (b).

13 In secondary school the word "relation" is used to describe a set of ordered pairs. In (a) and (b) examine the following ordered pairs of numbers, where the first coordinate is the x value and the second coordinate is the associated y value. In each case, explain why y is not a func- tion of x. (a) {(1, 2), (1, 3), (1, 4)} (b) {(-2, 1), (3, 2), (4, 3), (3, 1)} (c) Using the fourth method of representing functions described in this section, draw the picture that represents each of the relations from (a) and (b).

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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13 In secondary school the word "relation" is used to describe a set of ordered pairs. In (a) and (b) examine the following ordered pairs of numbers, where the first coordinate is the x value and the second coordinate is the associated y value. In each case, explain why y is not a func- tion of x. (a) {(1, 2), (1, 3), (1, 4)} (b) {(-2, 1), (3, 2), (4, 3), (3, 1)} (c) Using the fourth method of representing functions described in this section, draw the picture that represents each of the relations from (a) and (b).
Transcribed Image Text:13 In secondary school the word "relation" is used to describe a set of ordered pairs. In (a) and (b) examine the following ordered pairs of numbers, where the first coordinate is the x value and the second coordinate is the associated y value. In each case, explain why y is not a func- tion of x. (a) {(1, 2), (1, 3), (1, 4)} (b) {(-2, 1), (3, 2), (4, 3), (3, 1)} (c) Using the fourth method of representing functions described in this section, draw the picture that represents each of the relations from (a) and (b).
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