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Function

by Mayur Sand » Tue Jul 21, 2009 8:28 pm
For all integers n, the function f is defined by f (n) = an, where a is a constant. What is the value of f (1)?
(1) f (2) = 100
(2) f (3) = -1,000

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.

OA B
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by gmat740 » Tue Jul 21, 2009 9:07 pm
For all integers n, the function f is defined by f (n) = an, where a is a constant. What is the value of f (1)?
I did this question few days ago :

Please make a correction

f (n) = a^n

(1)
f(2) =100 = (10)^2 or (-10)^2
so n =+10 or -10
cant say from here

(2)

f(3) = -1000 = (-10)^3

n= -10

so B

hope this Helps
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by Mayur Sand » Tue Jul 21, 2009 9:13 pm
Thanks Man i missed out on -10
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