document.write( "Question 434619: Find the equation of the line in STANDARD FORM through the points (2,1) and (-14,5) \n" ); document.write( "
Algebra.Com's Answer #301033 by Alan3354(69443) You can put this solution on YOUR website! Find the equation of the line in STANDARD FORM through the points (2,1) and (-14,5) \n" ); document.write( "---------------- \n" ); document.write( "Do it like this: \n" ); document.write( "Find the equation given 2 points: \n" ); document.write( "Points (3,7) and (6,1) \n" ); document.write( "Find m, the slope \n" ); document.write( "m = diffy/diffx = (6-3)/(1-7) = 3/(-6) \n" ); document.write( "m = -1/2 \n" ); document.write( "-------- \n" ); document.write( "Use y = mx + b and either point to find b, the y-intercept \n" ); document.write( "7 = (-1/2)*3 + b \n" ); document.write( "b = 8.5 or 17/2 \n" ); document.write( "--> y = (-1/2)x + 17/2 in slope-intercept form \n" ); document.write( "x + 2y = 17 in standard form\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |