document.write( "Question 46823: Can someone help me find the inverse of the following functions?? please???\r
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document.write( "f(x)=x+3
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document.write( "f(x)=x/(x+2)
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document.write( "f(x)=square root of x
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document.write( "f(x)=3^x....this one is 3 to the \"x\" power\r
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document.write( "please help me thank you! \n" );
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Algebra.Com's Answer #31013 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! find the inverse of the following functions?? please??? \n" ); document.write( "f(x)=x+3 \n" ); document.write( "Write as y=x+3 \n" ); document.write( "Interchange x and y as follows: \n" ); document.write( "x=y+3 \n" ); document.write( "Solve for \"y\", as follows: \n" ); document.write( "y=x-3 \n" ); document.write( "That is the inverse. \n" ); document.write( "-------------------------- \n" ); document.write( "f(x)=x/(x+2) \n" ); document.write( "y=x/(x+2) \n" ); document.write( "x=y/(y+2) \n" ); document.write( "xy+2x = y \n" ); document.write( "xy-y=-2x \n" ); document.write( "y(x+2)=-2x \n" ); document.write( "y=-2x/(x+2), x not equal to -2 \n" ); document.write( "That is the inverse. \n" ); document.write( "-------------------------- \n" ); document.write( "f(x)=square root of x \n" ); document.write( "y=sqrtx \n" ); document.write( "x=sqrty \n" ); document.write( "x^2=y \n" ); document.write( "y=x^2, x>=0 \n" ); document.write( "That is the inverse. \n" ); document.write( "----------------------------- \n" ); document.write( "f(x)=3^x \n" ); document.write( "y=3^x \n" ); document.write( "x=3^y \n" ); document.write( "y=log(base3)x \n" ); document.write( "That is the inverse. \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |