document.write( "Question 724246: Solve the equation of a line in slope intercept form that has a slope of -5/9 and passes through the point (18,7) I am supposed to get this from point slope to slope intercept this is what the equation looks like y-18=-5/9(x-7) PLEASE HELP! \n" ); document.write( "
Algebra.Com's Answer #443660 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve the equation of a line in slope intercept form that has a slope of -5/9 and passes through the point (18,7) \n" ); document.write( "----- \n" ); document.write( "I am supposed to get this from point slope to slope intercept this is what the equation looks like y-18=-5/9(x-7) PLEASE HELP! \n" ); document.write( "----- \n" ); document.write( "You are being asked to use the point-slope formula to find the equation. \n" ); document.write( "slope = (change in y)/(change in x) \n" ); document.write( "---- \n" ); document.write( "(x,y) and (18,7) are two points on the line. \n" ); document.write( "----- \n" ); document.write( "(y-7)/(x-18) = -5/9 \n" ); document.write( "----- \n" ); document.write( "y-7 = (-5/9}(x-18) \n" ); document.write( "y-7 = (-5/9)x + 10 \n" ); document.write( "----- \n" ); document.write( "Ans: y = (-5/9)x + 17 \n" ); document.write( "------ \n" ); document.write( "An easier way to do these when you have a point and the slope is as follows: \n" ); document.write( "Form: y = mx + b \n" ); document.write( "Substitute for y,x, and m ; solve for \"b\": \n" ); document.write( "7 = (-5/9)18 + b \n" ); document.write( "7 = -10 + b \n" ); document.write( "b = 17 \n" ); document.write( "---- \n" ); document.write( "Equation: \n" ); document.write( "y = (-5/9)x + 17 \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " \n" ); document.write( " |