document.write( "Question 519290: write the standard form of the equation through the points (4,2) and perpendicular to y=2x-1 \n" ); document.write( "
Algebra.Com's Answer #345507 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Standard Form of Equation of the line: \n" ); document.write( "y=mx+b \n" ); document.write( "Given \n" ); document.write( "y=2x-1 \n" ); document.write( "Compare above equation with the standard form equation \n" ); document.write( "m=2 and b=-1 \n" ); document.write( "Since lines are perpendicular multiplicatin of their slope will be (-1) \n" ); document.write( "So slope of the required line will be (-1/2) \n" ); document.write( "Now we have a point(4,2) and slope (-1/2)of the line we can easily find required lines by putting these values in the equation of the straight line poin-slope form. \n" ); document.write( "m=(y2-y1)/(x2-x1) \n" ); document.write( "-1/2=(y-2))/(x-4) \n" ); document.write( "-(x-4)=2(y-2) \n" ); document.write( "-x+4=2y-4 \n" ); document.write( "-2y=x-4-4 \n" ); document.write( "-2y=x-8 \n" ); document.write( "-2y/-2=(x-8)/-2 \n" ); document.write( "y=-x/2+8/2 \n" ); document.write( "y=-x/2+4 \n" ); document.write( "Above equation is the standard form of the equation of the line \n" ); document.write( " \n" ); document.write( " |