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Elina [12.6K]
3 years ago
10

Select the correct answer. Which relation is a function? A. {(2, 3), (1, 5), (2, 7)} B. {(-1, 5), (-2, 6), (-3, 7)} C. {(11, 9),

(11, 5), (9, 3)} D. {(3, 8), (0, 8), (3, -2)}
Mathematics
2 answers:
Anna [14]3 years ago
4 0

Answer:

Choice B represents a function

Step-by-step explanation:

For a relation to be a function, each x input should yield exactly one y output. Going by this definition, the relation given by alternative A is not a function since the x input 2 yields two different values of y. For alternative C, 11 yields 9 and 5 as the outputs hence contradicting the definition of a function. For alternative D, the value 3 yields two different y values.

AlexFokin [52]3 years ago
3 0
<h2>Answer:</h2>

<u>The answer is option </u><u>B.</u>

<h2> Explanation:</h2>

A rule that uniquely associates elements of one set A with the elements of another set B and each element in set A maps to only one element in set B.

Each element from X is related to only one element in Y. But it is okay for two different elements in X to be related to the same element in Y. So its  still a function. Let suppose

{ (1,a) , (2, b) , (2, c) , (3, d) }

This relation is not a function from X to Y because the element 2 in X is related to two different elements, b and c.

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