document.write( "Question 263387: What values are excluded from the domain of the function? (Separate multiple answers with commas. Enter NONE if there are none.)
\n" ); document.write( "F(x) = (3 x - 9)/(x - 8) \n" ); document.write( "
Algebra.Com's Answer #194093 by drk(1908)\"\" \"About 
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To determine the domain of any function, we ask 2 questions
\n" ); document.write( "(1) is the variable in a square root of any type?
\n" ); document.write( "if \"yes\" set the stuff under the root >= 0 and solve for x.
\n" ); document.write( "if \"no\" go to question 2.
\n" ); document.write( "(2) is the variable information in the denominator?
\n" ); document.write( "if \"yes\" set the denominator stuff not = 0 and solve for x.
\n" ); document.write( "if \"no\" then you say \"all reals\"
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\n" ); document.write( "Using these questions on the given problem., we get
\n" ); document.write( " (1) NO
\n" ); document.write( "(2) YES
\n" ); document.write( "so
\n" ); document.write( "\"x-8+=+0\"
\n" ); document.write( "solving for x, we get
\n" ); document.write( " x = 8.
\n" ); document.write( "This means we cannot use x = 8 as a domain number. \n" ); document.write( "
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