What is the value of integer k?
(1) k + 3 > 0
(2) k^4 ≤ 0
OA is B.
How can I determine the value of k? Please help.
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What is the value of k? where k is an integer.
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DavidG@VeritasPrep
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Statement 1 you can toss pretty quickly. k > -3, so k could be -2 or -1, etc.Vincen wrote:What is the value of integer k?
(1) k + 3 > 0
(2) k^4 ≤ 0
OA is B.
How can I determine the value of k? Please help.
The key to statement 2 is recognizing that if you take a base and raise it to an EVEN exponent, the value can never be negative. So if k^4 is less than or equal to 0, and it can't be less than 0, then it has to be equal to 0. Thus k = 0. Statement 2 alone is sufficient. The answer is B
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Jay@ManhattanReview
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Statement 1: k + 3 > 0Vincen wrote:What is the value of integer k?
(1) k + 3 > 0
(2) k^4 ≤ 0
OA is B.
How can I determine the value of k? Please help.
=> k > -3
No unique value of k. Insufficient.
Statement 2: k^4 ≤ 0
We see that k has an exponent of an even number, thus k^4 must be non-negative.
Since k^4 ≤ 0, the only possible non-negative value is 0. Sufficient.
The correct answer: B
Hope this helps!
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-Jay
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