document.write( "Question 389043: The line through A(3,1) perpendicular to x - 4y = 8 meets the x-axis at P and the y-axis at Q. Calculate the ratio PA : AQ. \n" ); document.write( "
Algebra.Com's Answer #275519 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "Note: the standard slope-intercept form for an equation of a line is y = mx + b
\n" ); document.write( "where m is the slope and b the y-intercept.
\n" ); document.write( "line through A(3,1) perpendicular to x - 4y = 8 OR y = (1/4)x - 2
\n" ); document.write( "Perpendicular lines have slopes that are negative reciprocals of one another
\n" ); document.write( "New line y = -4x + b using ordered pair Pt(3,1) to solve for b
\n" ); document.write( " 1 = -12 + b b = 13
\n" ); document.write( " y = -4x + 13 P(13/4,0) and Q(0,13)on this line
\n" ); document.write( "Calculate the ratio PA : AQ
\n" ); document.write( "PA Distance would be: P(13/4,0)and A(3,1)
\n" ); document.write( "\"sqrt%28%28x%5B2%5D+-+x%5B1%5D%29%5E2+%2B+%28y%5B2%5D+-+y%5B1%5D%29%5E2%29\"
\n" ); document.write( "PA = \"sqrt%28%28-.25%29%5E2+%2B+1%5E2%29+=+sqrt%281.0626%29=+1.031++\"
\n" ); document.write( "AQ Distance would be: A(3,1)and Q(0,13)
\n" ); document.write( "AQ = \"sqrt%28%28-3%29%5E2+%2B+%2812%29%5E2%29+=+sqrt%28153%29+=+12.369+\"
\n" ); document.write( "PA:AQ would be 1.031:12.369
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