document.write( "Question 167200: problem came from a worksheet. the equation of the line perpendicular to 3x-4y=9 and passing through (-2, -1). write the equation in standard form, with all integer coefficients. \n" ); document.write( "
Algebra.Com's Answer #123127 by checkley77(12844)\"\" \"About 
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Perpendicular to 3x-4y=9 and passing through (-2, -1)
\n" ); document.write( "4y=3x-9
\n" ); document.write( "y=3x/4-9/4 (red line)
\n" ); document.write( "This line has a slope(m)=3/4.
\n" ); document.write( "Any perpendicular line will have a slope(m)=-4/3.
\n" ); document.write( "Y=mX+b
\n" ); document.write( "-1=-4/3*-2+b
\n" ); document.write( "-1=8/3+b
\n" ); document.write( "b=-1-8/3
\n" ); document.write( "b=(-3-8)/3
\n" ); document.write( "b=-11/3
\n" ); document.write( "Thus the desired line equartion is:
\n" ); document.write( "y=-4x/3-11/3 (green line)
\n" ); document.write( "\"+graph%28+300%2C+300%2C+-5%2C+5%2C+-5%2C+5%2C+3x%2F4+-9%2F4%2C+-4x%2F3+-11%2F3%29+\" (graph 300x300 pixels, x from -5 to 5, y from -5 to 5, of TWO functions 3x/4 -9/4 and -4x/3 -11/3).
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