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What is the value of the integer k

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Source: — Data Sufficiency |
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by DavidG@VeritasPrep » Thu Jan 04, 2018 7:24 am
lheiannie07 wrote:What is the value of the integer k?

(1) k + 3 > 0
(2) k^4 <= 0

What's the best way to determine whether statement 1 is sufficient?

OA B
Statement 1: k > -3. k could be -2 or -1 or 0, etc. Not sufficient

Statement 2: Any number raised to an even exponent must be nonnegative. If k^4 is less than or equal to 0, and it can't be less than 0, then k^4 must, by definition, be equal to 0. Because we know definitively that k = 0 statement 2 alone is sufficient. The answer is B
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