document.write( "Question 1202590: Let the function h be defined by h(x) = (1/k) * x^k for some
\n" ); document.write( "non-zero constant k. If h(1/3) = (1/3)^4 then what is the
\n" ); document.write( "value of k?\r
\n" ); document.write( "\n" ); document.write( "(A) 3
\n" ); document.write( "(B) 1/3
\n" ); document.write( "(C) 4
\n" ); document.write( "(D) 1/4
\n" ); document.write( "(E) 3/4
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Algebra.Com's Answer #837509 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "If this were a problem on a test, probably the fastest path to the answer would be to try the answer choices to see which one works.

\n" ); document.write( "Using formal algebra, or rather just logical reasoning....

\n" ); document.write( "\"h%281%2F3%29=%281%2Fk%29%281%2F3%29%5Ek=%281%2F3%29%5E4\"

\n" ); document.write( "Since the right hand side is a pure exponential, the only way the left hand side can be equal to the right hand side is if k is 3:

\n" ); document.write( "\"h%281%2F3%29=%281%2F3%29%281%2F3%29%5E3=%281%2F3%29%5E4\"

\n" ); document.write( "Yes, it works.

\n" ); document.write( "ANSWER: (A) 3

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