document.write( "Question 1102910: The recursive rule for a sequence is f(1)=8 1/2, f(n)=f(n-1)-1/2.
\n" ); document.write( "How should I find the explicit rule? \n" ); document.write( "

Algebra.Com's Answer #717630 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The left side is the difference between one term\r\n" );
document.write( "and the preceding term.\r\n" );
document.write( "\r\n" );
document.write( "So this is an arithmetic sequence with\r\n" );
document.write( "common difference =  and first term \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "   <-- explicit rule\r\n" );
document.write( "\r\n" );
document.write( "Edwin

\n" ); document.write( "

\n" );