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Is this a function ?

Is this a function ?
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3 votes
Is this a function ?

Is this a function ?-example-1
User Martin Cejp
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a) yes, it is a function. It appears to be 1-to-1
b) It appears to be linear.
c) It has a negative slope. So it grows downward.

The formula is y= (-1/3)x + 81 for what it's worth.
User Carl Rosenberger
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