document.write( "Question 217356: Using the point-slope formula to write an equation of the line given the following information: The line passes through the point (-4,3) and is perpendicular to 3x - 2y = 9 \n" ); document.write( "
Algebra.Com's Answer #163934 by elima4(15)![]() ![]() ![]() You can put this solution on YOUR website! Start by first putting this equation in slope-intercept form; \n" ); document.write( "3x - 2y = 9 \n" ); document.write( "-2y=-3x+9 \n" ); document.write( "y = 3/2x + 9 \n" ); document.write( "Perpendicular lines have negative reciprocal slopes; \n" ); document.write( "So the slope for the new equation is going to be -2/3, so lets start with; \n" ); document.write( "y = -2/3x + b \n" ); document.write( "Now lets us the point given for our x and y; \n" ); document.write( "3 = -2/3(-4) + b\r \n" ); document.write( "\n" ); document.write( "3 = 8/3 + b \n" ); document.write( "3 - 8/3 = b \n" ); document.write( "9/3 - 8/3 = b \n" ); document.write( "1/3 = b \n" ); document.write( "So the equation will be; \n" ); document.write( "y= -2/3x + 1/3 \n" ); document.write( ":) \n" ); document.write( " \n" ); document.write( " |