document.write( "Question 1160164: If f(x+y)=f(x)+f(y) and f(1)=17, find f(2), f(3), and f(4). Is f(x+y)=f(x)+f(y) for all functions?\r
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Algebra.Com's Answer #783350 by ikleyn(52790)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "then  f(2) = f(1 + 1) = f(1) + f(1) = 17 + 17 = 34.     ANSWER\r\n" );
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document.write( "      f(3) = f(1 + 2) = f(1) + f(2) = 17 + 34 = 51.     ANSWER\r\n" );
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document.write( "      f(4) = f(2 + 2) = f(2) + f(2) = and you continue from this point.\r\n" );
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\n" ); document.write( "\n" ); document.write( "For the last question, the answer is \"NO\".\r
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\n" ); document.write( "\n" ); document.write( "As an counterexample, consider f(x) = x^2.\r
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