document.write( "Question 1163503: can you help me please
\n" ); document.write( "given f(x)={x^2 -3 for x > 4
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Algebra.Com's Answer #787612 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "can you help me please
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document.write( "given f(x) = {x^2 -3 for x > 4\r\n" );
document.write( "             {log(x-3) for x <= 4, \r\n" );
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document.write( "evaluate f(4)\r\n" );
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\n" ); document.write( "\n" ); document.write( "Hello, it is easy.\r
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document.write( "    The value of 4  belongs to the set  {x <= 4}  and does not belong to the set {x > 4}.\r\n" );
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document.write( "    Right ?  Do you understand it ?\r\n" );
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document.write( "    But of course ! --- It is OBVIOIUS (!)\r\n" );
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document.write( "    Therefore, you should use the FIRST line of the two that define the function.\r\n" );
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document.write( "    So, substitute x= 4 into the formula in the first line of the definition.\r\n" );
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document.write( "    You will get then  f(x) = log(4-3) = log(1) = 0.      ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "That is all.\r
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