document.write( "Question 1039567: if a line cuts the positive x-axis and the positive y-axis it has a negative gradient\r
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document.write( "true or false or sometimes true \r
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document.write( "i have no idea this is the last one on my homework sheet, all help is appreciated! \n" );
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Algebra.Com's Answer #654332 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! \"if a line cuts the positive x-axis\" means the x intercept must have a positive x coordinate, eg: (5,0)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "\"if a line cuts...the positive y-axis\" then we know the y intercept has a positive y coordinate, eg: (0,8)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let's find the slope of the line through those two example points\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m = (y2 - y1)/(x2 - x1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m = (8 - 0)/(0 - 5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m = 8/(-5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m = -1.6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Which is a negative slope or gradient (slope and gradient mean the same thing).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It turns out that the slope will always be negative in this case. As long as the x intercept is on the positive x axis and the y intercept is on the positive y axis, then the slope will always be negative.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So the final answer is True. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Side Note: I recommend you trying out other possible x and y intercepts. Compute the slope and hopefully you'll find that the slopes will always be negative. \n" ); document.write( " |