document.write( "Question 937715: ﬁnd the domain of the indicated function.
\n" ); document.write( "Express answers in both interval notation and inequality notation.\r
\n" ); document.write( "\n" ); document.write( "h(z) = 2/(4-z) \n" ); document.write( "

Algebra.Com's Answer #571127 by MathLover1(20850) $\"\"$ $\"About$

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$\"h%28z%29+=+2%2F%284-z%29\"$ => denominator cannot be equal to zero\r
\n" ); document.write( "\n" ); document.write( " if $\"%284-z%29=0\"$ that will not be a fraction; its value is undefined because the denominator has a value of zero \r
\n" ); document.write( "\n" ); document.write( "so, find a value that makes denominator equal to zero and exclude it from solution\r
\n" ); document.write( "\n" ); document.write( " $\"%284-z%29=0\"$ => $\"z=4\"$ \r
\n" ); document.write( "\n" ); document.write( "the domain is:\r
\n" ); document.write( "\n" ); document.write( "{ $\"z\"$ element $\"R\"$ : $\"z%3C%3E4\"$ }(assuming a function from reals to reals)\r
\n" ); document.write( "\n" ); document.write( "( $\"-infinity\"$ , $\"4\"$ )U ( $\"4%7D%2C%7B%7B%7Binfinity\"$ )\r
\n" ); document.write( "\n" ); document.write( "or\r
\n" ); document.write( "\n" ); document.write( "( $\"-infinity%3C4%3Cinfinity\"$ )\r
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