document.write( "Question 818302: A. Transform 4x-8y=13 to slope intercept form
\n" ); document.write( "B. What is the slope of the line perpendicular to the one in A if it goes through the point (-11,17)? \n" ); document.write( "

Algebra.Com's Answer #492531 by TimothyLamb(4379) $\"\"$ $\"About$

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L1:
\n" ); document.write( "4x - 8y = 13
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\n" ); document.write( "8y = 4x - 13
\n" ); document.write( "y = (4/8)x - (13/8)
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\n" ); document.write( "L1 in slope-intercept form:
\n" ); document.write( "y = (1/2)x - (13/8)
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\n" ); document.write( "What is the slope of the line L2 perpendicular to line L1?
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\n" ); document.write( "perpendicular lines have negative reciprocal slopes, so:
\n" ); document.write( "slope of L2 = -1/(1/2)
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\n" ); document.write( "slope of L2 = -2
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