document.write( "Question 1101043: For the line 3x+2y-5=0, find the obtuse angle the line that makes with the positive direction of the x-axis. \n" ); document.write( "
Algebra.Com's Answer #715622 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! slope intercept form is \n" ); document.write( "first 2y=-3x+5 \n" ); document.write( "y=(-3/2)x+2.5 \n" ); document.write( "The slope is -1.5 \n" ); document.write( " \n" ); document.write( "The x-intercept is where y=0 and is 1.5x=2.5, x=5/3 \n" ); document.write( "The y-intercept is where x=0 and is y=2.5 \n" ); document.write( "the acute angle made has a tangent of 2.5/(5/3)=1.5 \n" ); document.write( "arc tan (1.5)=56.31 deg \n" ); document.write( "the obtuse angle is the supplement or 123.69 deg \n" ); document.write( " |