document.write( "Question 1181200: find the inverse of f(x)=2x^3+1 \n" ); document.write( "
Algebra.Com's Answer #811058 by mccravyedwin(407)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The red graph is the graph of f(x) = 2x3+1\r\n" );
document.write( "The dotted line is the identity line y=x \r\n" );
document.write( "The green graph is the inverse f-1(x) = \"root%283%2C%28x-1%29%2F2%29\"\r\n" );
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document.write( "Note that the inverse of a function is its reflection in or across the\r\n" );
document.write( "identity line.\r\n" );
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document.write( "\"f%28x%29=2x%5E3%2B1\"\r\n" );
document.write( "\"y=2x%5E3%2B1\"\r\n" );
document.write( "\"x=2y%5E3%2B1\"\r\n" );
document.write( "\"x-1=2y%5E3\"\r\n" );
document.write( "\"%28x-1%29%2F2=y%5E3\"\r\n" );
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document.write( "\"root%283%2C%28x-1%29%2F2%29=y\"\r\n" );
document.write( "f-1(x) = \"root%283%2C%28x-1%29%2F2%29\"\r\n" );
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document.write( "Edwin
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