document.write( "Question 567586: The line l joining the points M(3,4) and N(8,14) cuts the x-axis at A and the y-axis at B.
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document.write( "a. Find the general equation of the line l.
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document.write( "b. Find the coordinate of Point A.
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document.write( "c. Find the coordinate of Point B. \n" );
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Algebra.Com's Answer #366624 by mananth(16949) You can put this solution on YOUR website! x1 y1 x2 y2 \n" ); document.write( "3 4 8 14 \n" ); document.write( " \n" ); document.write( "slope m =(y2-y1)/(x2-x1) \n" ); document.write( "(14-4)/(8-3) \n" ); document.write( "(10/5) \n" ); document.write( "m=2 \n" ); document.write( " \n" ); document.write( "Plug value of the slope and point (3,4) in \n" ); document.write( "Y = m x + b \n" ); document.write( "4.00 = 6 + b \n" ); document.write( "b= 4 - 6 \n" ); document.write( "b= -2 \n" ); document.write( "So the equation will be \n" ); document.write( "Y = 2 x -2 \r \n" ); document.write( "\n" ); document.write( "-2x+y+2=0\r \n" ); document.write( "\n" ); document.write( "This cuts the X axis at A so y=0\r \n" ); document.write( "\n" ); document.write( "plug y=0 \n" ); document.write( "-2x=-2 \n" ); document.write( "/-2 \n" ); document.write( "x=1 \n" ); document.write( "A(1,0)\r \n" ); document.write( "\n" ); document.write( "Plug x=0 for y intercept \n" ); document.write( "y=-2\r \n" ); document.write( "\n" ); document.write( "B=(0,-2) \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |