document.write( "Question 165551: Please help! Thanks
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\n" ); document.write( "\n" ); document.write( "3. Take a look at the table below and write out an equation for f(x).
\n" ); document.write( "x -2 -1 0 1 2
\n" ); document.write( "f(x) -1 1 3 5 7
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Algebra.Com's Answer #122044 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
x is increasing by 1, while f(x) is increasing by 2\r
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\n" ); document.write( "\n" ); document.write( "so f(x)=2x plus some \"fudge factor\" that makes the numbers right\r
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\n" ); document.write( "\n" ); document.write( "-1=2(-2)+k __ -1=-4+k __ 3=k\r
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\n" ); document.write( "\n" ); document.write( "f(x)=2x+3
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