document.write( "Question 315732: Given f(x) = \"log base a of x\" please describe the restrictions on a and the restrictions on x \n" ); document.write( "

Algebra.Com's Answer #225922 by jim_thompson5910(35256) $\"\"$ $\"About$

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Since $\"log%28a%2C%28x%29%29=log%2810%2C%28x%29%29%2Flog%2810%2C%28a%29%29\"$ , this means that the restrictions on 'a' are very similar to the restrictions on 'x'. However, we must make sure that $\"log%2810%2C%28a%29%29%3C%3E0\"$ . So this means that $\"a%3C%3E1\"$ \r
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\n" ); document.write( "\n" ); document.write( "For 'x', we can plug in any positive number (since we cannot take the log of 0 or any negative number). So this means that $\"x%3E0\"$ . Because the conditions on 'a' are similar, this means that $\"a%3E0\"$ as well but we must add that $\"a%3C%3E1\"$ \r
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