document.write( "Question 1109516: My Alegbra Mid term study guide has stumped me on this one question which is probably very simple I just haven't been in class. It says which shows a function for the sequence 16, 8, 4, 2...? The list of answers are ;
\n" ); document.write( "A. f(x) = 16 • (2)^x-1
\n" ); document.write( "B. f(x) = 16 (1/3)^x -1
\n" ); document.write( "C. f(x) = 16 • (1/2)^x-1
\n" ); document.write( "D. f(x) = 16 • (1/4)^x-1
\n" ); document.write( " I can't seem to understand which type of sequence it is or how to solve the question, I've googled so much and still can't get it
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #724497 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
I believe the answer is C.
\n" ); document.write( "\"+f%28x%29+=+16%2A%281%2F2%29%5E%28%28x-1%29%29+\"
\n" ); document.write( "Note that the \"+x-1+\" is the
\n" ); document.write( "exponent of \"+1%2F2+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "\"+x=1+\"
\n" ); document.write( "\"+f%28x%29++=+16%2A%281%2F2%29%5E%28%281-1%29%29+\"
\n" ); document.write( "\"+f%28x%29+=+16%2A%281%2F2%29%5E0+\"
\n" ); document.write( "\"+f%28x%29+=+16+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "\"+x=2+\"
\n" ); document.write( "\"+f%28x%29+=+16%2A%281%2F2%29%5E%28%282-1%29%29+\"
\n" ); document.write( "\"+f%28x%29+=+16%2A%281%2F2%29+\"
\n" ); document.write( "\"+f%28x%29+=+8+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "\"+x=3+\"
\n" ); document.write( "\"+f%28x%29+=+16%2A%281%2F2%29%5E%28%283-1%29%29+\"
\n" ); document.write( "\"+f%28x%29+=+16%2A%281%2F4%29+\"
\n" ); document.write( "\"+f%28x%29+=+4+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "And so on
\n" ); document.write( "Note that this is only true if you let \"+x+\"
\n" ); document.write( "vary from 1,2,3,4, . . .
\n" ); document.write( "
\n" );