document.write( "Question 43437: For the set of data below, find the line of best fit.
\n" ); document.write( "x -2 -1 0 1 2
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\n" ); document.write( "\n" ); document.write( " a. y = -1.8x + 3.6
\n" ); document.write( " b. y = -0.54x + 1.95
\n" ); document.write( " c. y = 3.6x - 1.8
\n" ); document.write( " d. y = 1.95x - 0.54
\n" ); document.write( " e. None of the others \n" ); document.write( "
Algebra.Com's Answer #28450 by AnlytcPhil(1806)\"\" \"About 
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document.write( "For the set of data below, find the line of best fit.\r\n" );
document.write( "x -2 -1  0  1  2 \r\n" );
document.write( "y  7  6  3  2  0 \r\n" );
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document.write( "  a. y = -1.8x + 3.6    \r\n" );
document.write( "  b. y = -0.54x + 1.95    \r\n" );
document.write( "  c. y = 3.6x - 1.8    \r\n" );
document.write( "  d. y = 1.95x - 0.54    \r\n" );
document.write( "  e. None of the others    \r\n" );
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document.write( "Do you have a TI-82 or higher?\r\n" );
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document.write( "Press STAT ENTER\r\n" );
document.write( "Put the 5 x-values under L1\r\n" );
document.write( "Put the 5 y-values under L2 \r\n" );
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document.write( "Press STAT then RIGHT ARROW to highlight CALC\r\n" );
document.write( "Scroll down to LinReg(ax+b)\r\n" );
document.write( "Press ENTER\r\n" );
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document.write( "Read\r\n" );
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document.write( "y=ax+b\r\n" );
document.write( "a=-1.8\r\n" );
document.write( "b=3.6\r\n" );
document.write( "···\r\n" );
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document.write( "So substitute -1.8 for a and 3.6 for b in y = ax+b\r\n" );
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document.write( "y = -1.8x + 3.6\r\n" );
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document.write( "So it's choice 1.\r\n" );
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document.write( "Were you supposed to use a formula?\r\n" );
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document.write( "Edwin
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