document.write( "Question 178461: write the equation of a line parallel to x+2y=7.which passes through the point(-5,-4)
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document.write( "the answer I came up with was y=-1/2x-13/2 is this correct? \n" );
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Algebra.Com's Answer #133407 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! x+2y=7 Rewrite in the slope-intercept format to identify the slope \n" ); document.write( "2y=-x+7 \n" ); document.write( "2/2y=-1/2x+7/2 \n" ); document.write( "y=-1/2x+7 Resulting in a slope of -1/2 \n" ); document.write( ". \n" ); document.write( "y=mx+b Since the lines are parallel, the slopes of the two lines are equal \n" ); document.write( "The second line has a slope of -1/2 and a point of (-5, -4) \n" ); document.write( "-4=(-1/2)(-5) + b Plug-in the values in order to solvle for the y-intercept \n" ); document.write( "-4=5/2+b Solve for the b-value (also known as the y-intercpet) \n" ); document.write( "-4+(-5/2)=b \n" ); document.write( "-13/2=b \n" ); document.write( ". \n" ); document.write( "Putting it all together gives your answer in which I agree: \n" ); document.write( "y=-1/2x-13/2\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( "Check by graphing both lines. They should have the same slope on your calculator.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |