document.write( "Question 1118156: I need the formula used\r
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\n" ); document.write( "\n" ); document.write( "n 1,2,3,4
\n" ); document.write( "f(n) 4,8,12,16 \n" ); document.write( "

Algebra.Com's Answer #733412 by josgarithmetic(39618) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "n    1, 2, 3,  4\r\n" );
document.write( "f(n) 4, 8, 12, 16\r\n" );
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\n" ); document.write( "\n" ); document.write( "Notice that each index increment makes f an increase of plus four. \n" ); document.write( "

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