document.write( "Question 1198678: find the function of the form y= log a(x) whose graph is given (7,1)
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Algebra.Com's Answer #832307 by ikleyn(52818)\"\" \"About 
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document.write( "The given is a function  y = \"log%28a%2C%28x%29%29\"  with the unknown value  \" a \"  as a base of logarithm.\r\n" );
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document.write( "They want you find the value of  \" a \"  from equation\r\n" );
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document.write( "    1 = \"log%28a%2C%287%29%29\"      (indeed,  y=1  when  x=7).\r\n" );
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document.write( "Obviously, a = 7.\r\n" );
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document.write( "ANSWER.  a = 7.\r\n" );
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