document.write( "Question 426982: Write the slope-intercept equation for the line that passes through (-7, 6) and is perpendicular to -7x + 9y = -2 Please show all of your work. \n" ); document.write( "
Algebra.Com's Answer #296963 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
-7 x + 9 y = -2
\n" ); document.write( "Find the slope of this line
\n" ); document.write( "
\n" ); document.write( "9 y = 7 x + 2
\n" ); document.write( "Divide by 9
\n" ); document.write( " y = 7/9 x 0.22
\n" ); document.write( "Compare this equation with y=mx+b
\n" ); document.write( "slope m = 0.78
\n" ); document.write( "
\n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal
\n" ); document.write( "m1*m2=-1
\n" ); document.write( "The slope of the required line will be -1.29
\n" ); document.write( "m= -1.29 ,point (-7,6)
\n" ); document.write( "Find b by plugging the values of m & the point in
\n" ); document.write( "y=mx+b
\n" ); document.write( "6=9+b
\n" ); document.write( "b=-3
\n" ); document.write( "m=-1.29
\n" ); document.write( "The required equation is y=-1.29 x-3
\n" ); document.write( " \n" ); document.write( "
\n" );