Algebra-1

The mathematical rule given is . This means y is half of x.
Let's check each table of values to see which one matches the rule :

A. 
For x=1, (matches)
For x=2, y=1 (matches)
For x=4, =1.5 (does not match 2)
For x=7, y=2 (does not match )
This table does not match the rule .

B. 
For

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