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18 Mar 2021, 06:30
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x: 9
f(x): 9
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
65% (01:39) correct
35%
(01:59)
wrong
based on 1099
sessions
History
Date
Time
Result
Not Attempted Yet
The function f(x) can be defined for all positive integers x as "the number of unique factors of x", squared. From the table below, select a pairing of x and f(x).
| x | f(x) | |
| 8 | ||
| 9 | ||
| 10 | ||
| 11 | ||
| 12 |
ShowHide Answer
Official Answer
x: 9
f(x): 9
24 Mar 2021, 10:32
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Official Explanation
9 has exactly three factors (1, 3, and 9), and three-squared is 9, so f(9) = 9. None of the other options for x has a corresponding f(x) available as an option.
Ans: 9 for Both
9 has exactly three factors (1, 3, and 9), and three-squared is 9, so f(9) = 9. None of the other options for x has a corresponding f(x) available as an option.
Ans: 9 for Both
General Discussion
24 Mar 2021, 10:24
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Hey Sajjad1994, can you share the Official Explanation for this question, according to me the answer can be 10 and 9 or 9 and 9.
Waiting to hear from you.
Waiting to hear from you.
