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Question
Given R = {(x, y) : x, y ∈ W, x2 + y2 = 25}. Find the domain and Range of R.
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Solution
We have, R = {(x, y) : x, y ∈ W, x2 + y2 = 25}
= {(0, 5), (3, 4), (4, 3), (5, 0)}
Domain of R = Set of first element of ordered pairs in R
= {0, 3, 4, 5}
Range of R = Set of second element of ordered pairs in R
= {5, 4, 3, 0}
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