document.write( "Question 180199: graph 3x-2y-8 by using the slope and the y- intercept. Hint-- be sure to use the equation in slope-intercept for first.\r
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document.write( "thanks for the help!!!!!! \n" );
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Algebra.Com's Answer #135084 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! ok. so first we need to rewrite this in slope intercept form which is \n" ); document.write( ": \n" ); document.write( "y=mx+b where m is the slope and b is the y intercept(0,b). \n" ); document.write( ": \n" ); document.write( "I will have to assume that the -8 is really =8 since we need an equals somewhere \n" ); document.write( ": \n" ); document.write( "3x-2y=8 \n" ); document.write( ": \n" ); document.write( "-2y=-3x+8....subtracted 3x from both sides \n" ); document.write( ": \n" ); document.write( "y=(3/2)x-4...divided all terms by -2 \n" ); document.write( ": \n" ); document.write( "so slope is 3/2 and the y intercept is -4 (0,-4) \n" ); document.write( ": \n" ); document.write( "so we start by plotting the point (0,-4). This is a positive slope so we move \n" ); document.write( ": \n" ); document.write( "3 units up and 2 units to the right(plot that point) then draw a line thru both those points and there ya have it. \n" ); document.write( ": \n" ); document.write( "should look like this when your done. BTW the other point will end up at (2,-1) \n" ); document.write( ": \n" ); document.write( " |