document.write( "Question 1078668: Let f be the function defined by
\n" ); document.write( "f = {(−3, 8), (−2, 9), (−1, 2), (0, 9), (1, 4), (2, 3), (3, −3)}
\n" ); document.write( "and let g be the function defined
\n" ); document.write( "g = {(−3, −1), (−2, 1), (−1, −9), (0, 2), (1, −3), (2, 8), (3, 2)}.
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Algebra.Com's Answer #693080 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Rule:\r\n" );
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document.write( "If the ordered pair (a, b) is contained in a function F,\r\n" );
document.write( "then F(a) = b\r\n" );
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document.write( "(f∘g)(3) means \"f%28%22g%283%29%22%5E%22%22%29\"\r\n" );
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document.write( "Now since the ordered pair (3, 2) is contained in function g,\r\n" );
document.write( "we know that g(3) = 2.\r\n" );
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document.write( "So (f∘g)(3) \"%22%22=%22%22\"\"f%28%22g%283%29%22%5E%22%22%29\"\"%22%22=%22%22\"\"f%282%5E%22%22%29\"\r\n" );
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document.write( "Now since the ordered pair (2, 3) is contained in function f,\r\n" );
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document.write( "we know that \"f%282%5E%22%22%29\"\"%22%22=%22%22\"\"3\"\r\n" );
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document.write( "So altogether\r\n" );
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document.write( " (f∘g)(3) \"%22%22=%22%22\"\"f%28%22g%283%29%22%5E%22%22%29\"\"%22%22=%22%22\"\"f%282%5E%22%22%29\"\"%22%22=%22%22\"\"3\"\r\n" );
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document.write( "Edwin
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