document.write( "Question 921821: Find the distance between these equations and give their x and y intercepts.
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document.write( "2x+3y=20
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document.write( "2x+3y=30 \n" );
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Algebra.Com's Answer #559235 by Theo(13342) You can put this solution on YOUR website! to find the y intercept, set x = 0 and solve for y. \n" ); document.write( "2x + 3y = 20 becomes 3y = 20 which becomes y = 20/3 = 6 and 2/3 \n" ); document.write( "2x + 3y = 30 becomes 3y = 30 which becomes y = 30/3 = 10\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to find the x intercept, set y = 0 and solve for x. \n" ); document.write( "2x + 3y = 20 becomes 2x = 20 which becomes x = 10 \n" ); document.write( "2x + 3y = 30 becomes 2x = 30 which becomes x = 15\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the vertical distance between these equations is going to be 30/3 - 20/3 = 10/3 = 3 and 1/3.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to find the slope, solve each equation for y. \n" ); document.write( "2x + 3y = 20 becomes y = -2/3*x + 20/3 \n" ); document.write( "2x + 3y = 30 becomes y = -2/3*x + 30/3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the slopes are the same so the graphs of the equations are parallel to each other.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the graphs of the equations looks like this:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you can see that the y intercepts are 30/3 and 20/3 which are equivalent to 10 and 6 and 2/3.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you can see that the x-intercepts are equal to 10 and 15.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the slope of -2/3 means that the y value goes down 2 units for every 3 units that the x value goes to the right.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |