document.write( "Question 1182212: Given f(x) = 7x + 4 , determine the value of f−1(−3) \r
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Algebra.Com's Answer #812184 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "f−1(x) has x's and y's swapped from F(x).\r\n" );
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document.write( "Given f(x) = 7x + 4 , determine the value of f−1(−3) \r\n" );
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document.write( "That's the same as asking\r\n" );
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document.write( "Given y = 7x + 4, determine the value of x when y = −3.\r\n" );
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document.write( "     -3 = 7x + 4\r\n" );
document.write( "     -7 = 7x\r\n" );
document.write( "     -1 = x\r\n" );
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document.write( "f−1(−3) = -1 \r\n" );
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document.write( "Edwin
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