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How do you find the domain and range and determine whether the relation is a function given {(3,4), (4,3), (6,5), (5,6)}?

Answer 1

Eva Adamson

Domain #=(3,4,6,5)#
Range # =(4,3,5,6)#
It is a function

#{(3,4),(4,3),(6,5),(5,6)}#

Domain is the set of all #x# coordinate, so domain #=(3,4,6,5)#

Range is the set of all #y# coordinate, so range #=(4,3,5,6)#

From this, we can find out that every element in #x# has only one element in #y#.

So, it serves a purpose.

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Answer 2

Savannah Anderson

Domain: {3, 4, 5, 6} Range: {4, 3, 5, 6} The relation is a function because each input (x-value) is associated with exactly one output (y-value).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.