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The relation is,
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Express the relation as ordered pairs.
Draw a table with two columns and list the x-coordinates in the first column and y-coordinates in the second column.
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x \ | \
y \ |
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-6 \ | \
5 \ |
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-4 \ | \
2 \ |
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-1 \ | \
1 \ |
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2 \ | \
1 \ |
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The domain of the relation is the set of all first (x-coordinates) coordinates.
\The domain of the relation is
The range of the relation is the set of first (y-coordinates) coordinates.
\The range of the relation is
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Each element of the domain is paired with exactly one element of the range. Therefore the relation is a function and this one-to-one function.
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Yes the relation is a function.
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