document.write( "Question 547535: A line with slope equal to 1 and a line with slope equal to 2 intersect at the point (4,6). Points Q and R are both on the x-axis. What is the area of triangle PQR? \n" ); document.write( "
Algebra.Com's Answer #356422 by mananth(16946)\"\" \"About 
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m= 1
\n" ); document.write( "
\n" ); document.write( "Plug value of the slope and point ( 4 , 6 ) in
\n" ); document.write( "Y = m x + b
\n" ); document.write( "6.00 = 4 + b
\n" ); document.write( "b= 6 - 4
\n" ); document.write( "b= 2
\n" ); document.write( "So the equation will be
\n" ); document.write( "Y = 1 x + 2
\n" ); document.write( "plug y = 0
\n" ); document.write( "x=-2
\n" ); document.write( "the x intercept will be (0,-2)\r
\n" ); document.write( "\n" ); document.write( "-------- \r
\n" ); document.write( "\n" ); document.write( "m= 2
\n" ); document.write( "
\n" ); document.write( "Plug value of the slope and point (4,6) in
\n" ); document.write( "Y = m x + b
\n" ); document.write( "6.00 = 8 + b
\n" ); document.write( "b= 6 - 8
\n" ); document.write( "b= -2
\n" ); document.write( "So the equation will be
\n" ); document.write( "Y = 2 x -2
\n" ); document.write( "for x intercept plug y=0
\n" ); document.write( "-2x=-2
\n" ); document.write( "x=1
\n" ); document.write( "x intercept = (0,1)\r
\n" ); document.write( "\n" ); document.write( "You have three points
\n" ); document.write( "(0,1), (0,-2),(4,6) \r
\n" ); document.write( "\n" ); document.write( "Using the formula find the area of triangle
\n" ); document.write( "x1(y3-y2)+x2(y3-y1)+x3(y1-y2)/2\r
\n" ); document.write( "\n" ); document.write( "Area = 6 sq. units\r
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\n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca
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