document.write( "Question 1195961: Vilakazi and his friend are playing a number guessing game. Vilakazi asks his friend to think
\n" ); document.write( "a positive number, then add four to the number. Next, square the resulting number, and
\n" ); document.write( "multiply result by 3. Finally, divide the result by 2. If you’re his friend and you get a result of
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Algebra.Com's Answer #828608 by ikleyn(52790) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "(i)  In order for to write the inverse function, let's denote the resulting number by \"y\"\r\n" );
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document.write( "     After that, write the arithmetic and algebraic operations in reverse order,\r\n" );
document.write( "     starting from y.\r\n" );
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document.write( "       - Multiply \"y\" by 2, getting 2y;\r\n" );
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document.write( "       - divide 2y by 3, getting ;\r\n" );
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document.write( "       - take the square root from it, getting  ;\r\n" );
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document.write( "       - subtract 4 from it, getting  .\r\n" );
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document.write( "     It is your inverse function  x = .    ANSWER\r\n" );
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document.write( "     It allows you calculate the starting number x from the resulting number y.\r\n" );
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document.write( "(ii)  To determine the starting number, use this function with the value y = 50.\r\n" );
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document.write( "      You will get  x =  =  =  = 1.773502692...    ANSWER\r\n" );
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