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greenplants
greenplants greenplants
  • 02-09-2016
  • Mathematics
Answered

Which of the following expressions represents a function?


{(1, 2), (4, –2), (8, 3), (9, –3)}


y2 = 16 − x2


2x2 + y2 = 5


x = 7

Verified Answer :

Krose1
Krose1 Krose1
  • 02-09-2016

The first one is a function because their is only 1 y-value for every x-value.

Answer Link

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