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Marco tested three values of "x" in two rational expressions and found that one value of "x" returned different vaules for "y" in the two given expressions. Which of following conclusions are correct?

1. The two rational expressions are not equivalent.
2. The two rational expressions are equivalent part of the time.
3. More testing is needed to draw a conclusion.
4. The two rational expressions are equivalent.

1 answer

1. The two rational expressions are not equivalent.

This is the correct conclusion because if one value of "x" returns different values for "y" in the two expressions, then they cannot be equivalent.
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