document.write( "Question 59434: find the equation of the line through the two points (3,4) and (2,-1); write the equation in the slope intercept form and find the x and y intercept of the line. \r
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Algebra.Com's Answer #40735 by uma(370)![]() ![]() ![]() You can put this solution on YOUR website! The given points are (3,4) and (2,-1)\r \n" ); document.write( "\n" ); document.write( "Slope of the line through these points = \n" ); document.write( " difference in y coordinates/diff in x coord\r \n" ); document.write( "\n" ); document.write( "Slope = (-1-4)/(2-3) \n" ); document.write( " = -5/-1 \n" ); document.write( " = 5\r \n" ); document.write( "\n" ); document.write( "Equation of the line with 5 as the slope and passing through (3,4) is \n" ); document.write( " y - 4 = 5(x - 3)\r \n" ); document.write( "\n" ); document.write( "==> y - 4 = 5x - 15 \n" ); document.write( "==> y -4 +4 = 5x - 15 +4 \n" ); document.write( "==> y = 5x - 11\r \n" ); document.write( "\n" ); document.write( "This is the required equation in slope intercept form.\r \n" ); document.write( "\n" ); document.write( "We find the y intercept of this line is - 11\r \n" ); document.write( "\n" ); document.write( "To find the x intercept we plug in y = 0 in the above equation \n" ); document.write( "==> 0 = 5x - 11 \n" ); document.write( "==> 11 = 5x - 11+ 11 \n" ); document.write( "==> 11 = 5x \n" ); document.write( "==> 11/5 = 5x/5 \n" ); document.write( "==> 11/5 = x\r \n" ); document.write( "\n" ); document.write( "The x intercept is 11/5 and y intercepr is -11 \n" ); document.write( " \n" ); document.write( " |