document.write( "Question 4037: A line has a y-intercept of (0,2) and is perpendicular to the line with equation 2x-3y=6. Write the equation of the line. \n" ); document.write( "
Algebra.Com's Answer #1771 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Your answer can be written in the slope-intercept form of the equation for a line: y = mx + b\r \n" ); document.write( "\n" ); document.write( "So you need to find the slope, m, and the y-intercept, b.\r \n" ); document.write( "\n" ); document.write( "The y-intercept is given as 2.\r \n" ); document.write( "\n" ); document.write( "You can get the slope from the given line to which your new line is perpendicular.\r \n" ); document.write( "\n" ); document.write( "Perpendicular lines have slopes that are the negative reciprocal of each other.\r \n" ); document.write( "\n" ); document.write( "The slope of the given line can be found by re-writing the equation (2x-3y=6)in the slope-intercept form: y = mx + b\r \n" ); document.write( "\n" ); document.write( "2x - 3y = 6 Add 3y to both sides. \n" ); document.write( "2x = 3y + 6 Subtract 6 from both sides. \n" ); document.write( "2x - 6 = 3y Divide both sides by 3. \n" ); document.write( "(2/3)x - 2 = y or y = (2/3)x - 2 Compare with: y = mx + b: m = 2/3\r \n" ); document.write( "\n" ); document.write( "The negative reciprocal of 2/3 is -3/2\r \n" ); document.write( "\n" ); document.write( "The equation of the new line is: y = -(3/2)x + 2 \n" ); document.write( " \n" ); document.write( " |