document.write( "Question 1036807: For the functions f and g, given that
\n" ); document.write( "f∘g = {(4,3), (­-1,9), (­-2,7)} \r
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Algebra.Com's Answer #651543 by Edwin McCravy(20077)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "If    (a,b) is a member of g \r\n" );
document.write( "and   (b,c) is a member of f\r\n" );
document.write( "then  (a,c) is a member of f∘g\r\n" );
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document.write( "(4,3) is a member of f∘g, so let a=4 and c=3\r\n" );
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document.write( "Since (4,b) is a member of g \r\n" );
document.write( "and   (b,3) is a member of f\r\n" );
document.write( "then  (4,3) is a member of f∘g\r\n" );
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document.write( "We just need to make up a value for b, say 6, then\r\n" );
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document.write( "Since (4,6) is a member of g \r\n" );
document.write( "and   (6,3) is a member of f\r\n" );
document.write( "then  (4,3) is a member of f∘g\r\n" );
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document.write( "-----------------\r\n" );
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document.write( "(-1,9) is a member of f∘g, so let a=-1 and c=9\r\n" );
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document.write( "Since (-1,b) is a member of g \r\n" );
document.write( "and   (b,9) is a member of f\r\n" );
document.write( "then  (-1,9) is a member of f∘g\r\n" );
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document.write( "We just need to make up a value for b, say 5, then\r\n" );
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document.write( "Since (-1,5) is a member of g \r\n" );
document.write( "and   (5,9) is a member of f\r\n" );
document.write( "then  (-1,9) is a member of f∘g\r\n" );
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document.write( "-----------------\r\n" );
document.write( "(-2,7) is a member of f∘g, so let a=-2 and c=7\r\n" );
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document.write( "Since (-2,b) is a member of g \r\n" );
document.write( "and   (b,7) is a member of f\r\n" );
document.write( "then  (-2,7) is a member of f∘g\r\n" );
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document.write( "We just need to make up a value for b, say -8, then\r\n" );
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document.write( "Since (-2,8) is a member of g \r\n" );
document.write( "and   (8,7) is a member of f\r\n" );
document.write( "then  (-2,7) is a member of f∘g\r\n" );
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document.write( "-----------------\r\n" );
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document.write( "Therefore g = {(4,6), (-1,5), (-2,8)} and\r\n" );
document.write( "          f = {(6,3),  (5,9),  (8,7)}\r\n" );
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document.write( "is an example of what g and f could be.\r\n" );
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document.write( "Edwin
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