B. Write F if the equation is a function or NF if it is not a function.
1. 2x=y
2. x² + y² = 4
3. x = 3y
4. x² + y = 2
5. y² + x² = 4
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B. Write F if the equation is a function or NF if it is not a function.
1. 2x=y
2. x² + y² = 4
3. x = 3y
4. x² + y = 2
5. y² + x² = 4
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Answer:
1.f
Step-by-step explanation: