document.write( "Question 22299: Can anyone help me with this?\r
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document.write( "I just need to sketch the graph of the following function, but need to also
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document.write( "know how it's done.\r
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document.write( "f(x) = 3- In x
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document.write( "The answer shows it as intersecting the x axis at (20,0)
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document.write( "Domain x>0
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document.write( "V. axymptote = x axis x = 0\r
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document.write( "Can anyone help?
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document.write( "Thanks
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document.write( "Sandy \n" );
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Algebra.Com's Answer #10822 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I can't sketch it for you here but can describe how you should do that.\r \n" ); document.write( "\n" ); document.write( "Hopefully you know what the graph of lnx looks like. It has x=0 as an \n" ); document.write( "asymptote, passes upward through (1,0) and gradually rises as x gets larger \n" ); document.write( "and larger. \r \n" ); document.write( "\n" ); document.write( "Now your equation has a negative sign before lnx. That flips the lnx \n" ); document.write( "graph over on the x-axis. It still passes through (1,0) and still has \n" ); document.write( "x=0 as an asymptote, but now it gets more and more negative as x gets \n" ); document.write( "larger and larger.\r \n" ); document.write( "\n" ); document.write( "The \"3\" in your equation raises every point in the graph upward by \"3\".\r \n" ); document.write( "\n" ); document.write( "So now it doesn't pass through (1,0); instead it passes through (1,3), \n" ); document.write( "and yes, it passes through (20.086,0).\r \n" ); document.write( "\n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |