First step: x= ± √ 121
Second step and correct answer: x= ± 11
Because: x^2 = x= ± √
Answer:
Table B
Step-by-step explanation:
If you see any number in the input being used more than once, it is not a function. If all numbers of the input are different, it is a function.
Only Table B is a function since all input numbers are different.
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