Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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Let f = {(x, y) | x, y ∈ N and y = 2x} be a relation on N. Find the domain, co-domain and range. Is this relation a function? - Mathematics

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Sum

Let f = {(x, y) | x, y ∈ N and y = 2x} be a relation on N. Find the domain, co-domain and range. Is this relation a function?

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Solution

X = {1, 2, 3, ….}

Y = {1, 2, 3, ….}

f = {(1, 2) (2, 4) (3, 6) (4, 8) ….}

Domain = {1, 2, 3, 4 ….}

Co-domain = {1, 2, 3, 4 ….}

Range = {2, 4, 6, 8}

Yes, this relation is a function.

Concept: Functions
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Tamil Nadu Board Samacheer Kalvi Class 10th SSLC Mathematics Answers Guide
Chapter 1 Relations and Functions
Exercise 1.3 | Q 1 | Page 13
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