document.write( "Question 491676: Find the value of k for which the graph of 6x-ky= 2 is perpendicular to 2x+3y= 7 \n" ); document.write( "
Algebra.Com's Answer #334728 by oberobic(2304)\"\" \"About 
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2x + 3y = 7
\n" ); document.write( "3y = -2x +7
\n" ); document.write( "y = -2/3*x +7/3
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\n" ); document.write( "So the slope of the perpendicular line is the inverse reciprocal: 3/2.
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\n" ); document.write( "6x -ky = 7
\n" ); document.write( "-ky = -6x +7
\n" ); document.write( "The value of k must be picked to make the slope = 3/2.
\n" ); document.write( "So k=4 results in
\n" ); document.write( "y = 3/2x + 7/4
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\n" ); document.write( "Graph
\n" ); document.write( "\"graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C-2%2F3%2Ax%2B7%2F3%2C3%2F2%2Ax%2B7%2F4%29\"
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