document.write( "Question 808940: what is the y intercept of the line that passes through point (-2,1) and is perpendicular to line y=-3x+1 \n" ); document.write( "
Algebra.Com's Answer #487307 by TimothyLamb(4379)\"\" \"About 
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perp lines have negative reciprocal slopes
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\n" ); document.write( "a line perp to:
\n" ); document.write( "y = -3x + 1
\n" ); document.write( "has slope: 1/3
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\n" ); document.write( "use the point-slope form: y - y1 = m(x - x1)
\n" ); document.write( "with point: (-2,1)
\n" ); document.write( "y - 1 = (1/3)(x + 2)
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\n" ); document.write( "y = (1/3)x + 2/3 + 1
\n" ); document.write( "y = (1/3)x + 2/3 + 3/3
\n" ); document.write( "y = (1/3)x + 5/3
\n" ); document.write( "Answer:
\n" ); document.write( "b = 5/3
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