document.write( "Question 205869: A straight line L passes though the point (0, -1) and is parallel to the straight line y=3x+1.
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Algebra.Com's Answer #155461 by RAY100(1637)\"\" \"About 
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Remember y= mx +b
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\n" ); document.write( "y=3x +1,,,,,,m=3,,,,,parallel to this also has m=3
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\n" ); document.write( "parallel line,,,,y= 3x +b,,,thru (0,-1),,,,subst
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\n" ); document.write( "(-1) = 3(0) +b
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\n" ); document.write( "b= -1
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\n" ); document.write( "or parallel line (L),,,,y= 3x -1 (i)
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\n" ); document.write( "if y=3x-1,,,,thru (2,b),,,,subst
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\n" ); document.write( "(b) = 3(2) -1,,,,,b= 5,,,,,(ii)
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