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In the function above, if f(k) = 2, then which one of the fo
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14 May 2019, 08:30
14 May 2019, 08:30
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75% (00:51) correct
25% (00:52) wrong based on 12 sessions
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In the function above, if f(k) = 2, then which one of the following could be a value of k ?
(A) –1
(B) 0
(C) 0.5
(D) 2.5
(E) 4
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Re: In the function above, if f(k) = 2, then which one of the fo
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14 May 2019, 13:36
14 May 2019, 13:36
1
Expert Reply
Note that all GRE coordinate geometry figures can be assumed drawn to scale and that f(x) notation is interchangeable with the y-coordinate in the coordinate plane, so look for the possible x values when the y-coordinate = 2, since the problem states that f(k) = 2.
Looking at the figure, the possible x values when the line intersects y = 2 are either x = -1 or the approximate range that 2 ≤ x ≤ 3.
The only answer choice that fits these values is 2.5, so the correct choice is D.
Looking at the figure, the possible x values when the line intersects y = 2 are either x = -1 or the approximate range that 2 ≤ x ≤ 3.
The only answer choice that fits these values is 2.5, so the correct choice is D.
Re: In the function above, if f(k) = 2, then which one of the fo
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27 Oct 2024, 20:50
27 Oct 2024, 20:50
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