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16 May 2018, 04:52
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
65% (00:53) correct
35%
(01:08)
wrong
based on 332
sessions
History
Date
Time
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Not Attempted Yet
The figure above shows the graph of the function f in the xy-plane. What is the value of \(f(f(-1))\) ?
A. −2
B. −1
C. 0
D. 1
E. 2
Attachment:
Quant.jpg [ 10.9 KiB | Viewed 24328 times ]
16 May 2018, 05:56
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Bunuel
\(f(-1)\) = 2
\(f(f(-1))\) = \(f(2)\) = 1
Answer: OPtion D
General Discussion
16 May 2018, 08:59
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Solution
To find:
• Following the given graph, we need to find out the value of f(f(-1))
Approach and Working:
• First we need to find f(-1)
- o As per the graph, at x = -1, f = 2
o Therefore, f(-1) = 2
- o As per the graph, at x = 2, f = 1
o Therefore, f(f(-1)) = 1
Hence, the correct answer is option D.
Answer: D
