document.write( "Question 992653: Find the equation of the line through the given pair of points. solve for y if possible. (2,-6) (7,2) I have to find the equation of the line and write it in standard form. \n" ); document.write( "
Algebra.Com's Answer #612213 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! slope of line is the difference in y values divided by difference in x values, \n" ); document.write( "we are given two points (2,-6) (7,2), therefore \n" ); document.write( "slope = (2 - (-6)) / (7 - 2) = 8/5 = 1.6 \n" ); document.write( "***************************************************************************** \n" ); document.write( "standard form for equation of a line is, y = mx + b where m is slope and b is the y intercept \n" ); document.write( "so far we have \n" ); document.write( "y = 1.6x + b \n" ); document.write( "we can choose either point to determine b, let's choose (7,2) \n" ); document.write( "2 = (1.6*7) + b \n" ); document.write( "2 = 11.2 + b \n" ); document.write( "subtract 11.2 from both sides of = \n" ); document.write( "b = -9.2 \n" ); document.write( "therefore the standard form of the equation of the line is \n" ); document.write( "y = 1.6x - 9.2 \n" ); document.write( " \n" ); document.write( " |