document.write( "Question 1174149: Find the area of a triangle bounded by the y-axis, the line
\n" ); document.write( "f(x) = 7− (2)/(7)x
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Algebra.Com's Answer #799576 by ikleyn(52793) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "            The solution by @ewatrrr looks frighteningly.\r
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\n" ); document.write( "\n" ); document.write( "            It is because she selected IMPROPER way to solve the problem.\r
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\n" ); document.write( "\n" ); document.write( "            Actually, there is MUCH SIMPLER way, pointed by @greenestamps.\r
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\n" ); document.write( "\n" ); document.write( "            I decided to complete the solution in that way to convince you HOW SIMPLE it is.\r
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document.write( "The two lines are\r\n" );
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document.write( "    y =  + 7\r\n" );
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document.write( "    y = .\r\n" );
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document.write( "Their intersection is\r\n" );
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document.write( "     = .\r\n" );
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document.write( "Multiply both sides by 14 to get\r\n" );
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document.write( "    -4x + 98 = 49x\r\n" );
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document.write( "          98 = 49x + 4x = 53x\r\n" );
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document.write( "           x            = .\r\n" );
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document.write( "You may consider the segment  [0,7]  along the y-axis as the base of our right-angled triangle.\r\n" );
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document.write( "Thus the base has the length of 7 units, while the altitude of the triangle, drawn to this base is    units long.\r\n" );
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document.write( "Hence, the area of the triangle is   =  = 6.472  square units  (rounded).    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "May the Lord saves you from solving the problem in a way how @ewatrrr does it . . . \r
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\n" ); document.write( "\n" ); document.write( "Let her post be a lesson for you on how this problem SHOULD NOT be solved.\r
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