document.write( "Question 547502: hello and thank you this is the problem \"write an equation in a standard form the passes through (-3,-5) and (4,5) if you could show the work that would be great
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document.write( "and 1 more it is write an equation in slope-intercept form for (0,-3),(1,1) \n" );
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Algebra.Com's Answer #356403 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! m = slope = change in y / change in x \n" ); document.write( "change in y = -5-5 = -10 \n" ); document.write( "change in x = -3-4 = -7 \n" ); document.write( "m = -10/-7 = 10/7 \n" ); document.write( "y = 10/7*x + b \n" ); document.write( "Use (4,5) to find 'b'. \n" ); document.write( "5 = 10/7*4 + b \n" ); document.write( "5 -40/7 = b \n" ); document.write( "b = -5/7 \n" ); document.write( "y = 10/7*x -5/7 \n" ); document.write( "multiply both sides by 7 to eliminate fractions \n" ); document.write( "7y = 10x -5 \n" ); document.write( "-10x +7y = -5 \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "m = -3-1 / 0-1 = -4/-1 = 4 \n" ); document.write( "y = 4x + b \n" ); document.write( "Use (0,-3) to find 'b'. \n" ); document.write( "-3 = 4*0 + b \n" ); document.write( "b= -3 \n" ); document.write( "y = 4x -3 \n" ); document.write( ". \n" ); document.write( "Done. \n" ); document.write( " |