document.write( "Question 1081258: Find a quadratic model for this sequence.
\n" ); document.write( "-4, -4, -3, -1, 2\r
\n" ); document.write( "\n" ); document.write( "A.) $\"y+=+0.5x%5E2\"$ - $\"0.5x+-+4\"$
\n" ); document.write( "B.) $\"y+=+0.5x%5E2\"$ - $\"1.5x+-+3\"$
\n" ); document.write( "C.) $\"y+=+4.5x%5E2\"$ - $\"21.5x%2B21\"$
\n" ); document.write( "D.) $\"y+=+-4.5x%5E2\"$ + $\"21.4x+-+21\"$ \n" ); document.write( "

Algebra.Com's Answer #695308 by MathLover1(20850) $\"\"$ $\"About$

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$\"-4\"$ | | $\"-4\"$ | | $\"-3\"$ | | $\"+-1\"$ | | $\"+2\"$ \r
\n" ); document.write( "\n" ); document.write( "Differences are:
\n" ); document.write( " $\"-4\"$ | | $\"-4\"$ | | $\"-3\"$ | | $\"+-1\"$ | | $\"+2\"$
\n" ); document.write( "----- $\"0\"$ ----- $\"1\"$ --------- $\"2\"$ ------- $\"+3\"$
\n" ); document.write( "---------- $\"1\"$ ------- $\"+1\"$ ------- $\"+1\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"a%5Bn+%5D=%28+1%2F2%29+%28n%5E2+-+3+n+-+6%29\"$ (for all terms given)\r
\n" ); document.write( "\n" ); document.write( " $\"a%5Bn%5D=0.5n%5E2+-0.5%2A3n+-+0.5%2A6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"a%5Bn%5D=0.5n%5E2+-1.5n+-+3\"$ \r
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\n" ); document.write( "\n" ); document.write( "answer: B.) $\"y+=+0.5x%5E2-1.5x+-+3\"$ \r
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