document.write( "Question 389621: i have to write the equation of the line for this problem. through two points (2,4) and (4,7) thx u soo much \n" ); document.write( "
Algebra.Com's Answer #276142 by lwsshak3(11628) ![]() You can put this solution on YOUR website! The approach here is to find the slope of the line then use the point slope formula to get the equation. \n" ); document.write( "using given points, (2,4) and (4,7) \n" ); document.write( "slope,m = change in y ÷ change in x = (7-4)/(4-2) = 3/2 \n" ); document.write( "using point-slope formula \n" ); document.write( "y-y1 = m(x-x1) \n" ); document.write( "choosing point (2,4) (choosing point (4,7) will also work) \n" ); document.write( "y-4 = (3/2)(x-2) \n" ); document.write( "multiplying both sides by 2, \n" ); document.write( "2(y-4) = 3(x-2) \n" ); document.write( "2y -8 = 3x-6 \n" ); document.write( "2y-3x =2\r \n" ); document.write( "\n" ); document.write( "ans: equation of the line through points (2,4) and (4,7) is 2y-3x =2\r \n" ); document.write( "\n" ); document.write( " |