document.write( "Question 420396: How would you solve this problem:
\n" ); document.write( "The approximate number of tax returns examined by the IRS in 1996 was 1.9 million In 2006, it was 1.2 million examined. Let x= 0 correspond to 1996, estimate the number of examined returns in 2008. Answer to 2 decimal places.
\n" ); document.write( "Thanks, it will be greatly appreciated.
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Algebra.Com's Answer #293773 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
You are given 2 data points that you can plot on a straight line
\n" ); document.write( "You can plot \"T\" = tax returns examined on the vertical axis,
\n" ); document.write( "and \"x\" = year on the horizontal axis.
\n" ); document.write( "given:
\n" ); document.write( " Let x= 0 correspond to 1996
\n" ); document.write( "Then x = 10 corresponds to 2006
\n" ); document.write( "(0,1.9) and (10,1.2) are the points
\n" ); document.write( "-----------------------
\n" ); document.write( "Use the point-slope formula:
\n" ); document.write( "\"+%28+T+-+1.2%29+%2F+%28x+-+10%29+=+%28+1.9+-+1.2+%29+%2F+%28+0+-+10%29+\"
\n" ); document.write( "\"+%28+T+-+1.2+%29+%2F+%28+x+-+10+%29+=+.7%2F%28-10%29+\"
\n" ); document.write( "\"+-10%2A%28+T+-+1.2+%29+=+.7%2A%28+x+-+10+%29+\"
\n" ); document.write( "\"+-10T+%2B+12+=+.7x+-+7+\"
\n" ); document.write( "\"+-10T+=+.7x+-+19+\"
\n" ); document.write( "\"+T+=+-.07x+%2B+1.9+\"
\n" ); document.write( "-----------------
\n" ); document.write( "I'll check the formula for (10,1.2)
\n" ); document.write( "\"+1.2+=+-.07%2A10+%2B+1.9+\"
\n" ); document.write( "\"+1.2+=+-.7+%2B+1.9+\"
\n" ); document.write( "\"+1.2+=+1.2+\"
\n" ); document.write( "OK
\n" ); document.write( "-------
\n" ); document.write( "Use the formula for 2008, which is \"x+=+12\"
\n" ); document.write( "\"+T+=+-.07%2A12+%2B+1.9+\"
\n" ); document.write( "\"+T+=+-+.84+%2B+1.9+\"
\n" ); document.write( "\"+T+=+1.06+\"
\n" ); document.write( "1.06 million returns examined in 2008
\n" ); document.write( "-----------
\n" ); document.write( "Here's a plot:
\n" ); document.write( "\"+graph%28+400%2C+400%2C+-2%2C+15%2C+-1%2C+3%2C+-.07x+%2B+1.9%29+\"
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