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coldgirl [10]
3 years ago
8

Which relations are functions?

Mathematics
1 answer:
pychu [463]3 years ago
5 0

For a relation to be a function every x value will have a single y value.

The first one has two x values of -2 but their y values are different so can’t be a function.

The second one has two 10’s with different y values so isn’t a function.

The 3rd one has 1 and -1 with the same y value, so isn’t a function.

The correct answer is the 4th choice

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