document.write( "Question 448637: for our math homework we are supposed to find the domain of the functions, but I am really confused.... would you be able to walk me through the steps of finding the domain of this problem? y=-5 times the square root of x\r
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\n" ); document.write( "GB\r
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Algebra.Com's Answer #308706 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
the \"domain\" specifies all the values that x can take for the given function:
\n" ); document.write( "-5 times the square root of x
\n" ); document.write( "or
\n" ); document.write( "\"f%28x%29+=+-5%2Asqrt%28x%29\"
\n" ); document.write( "In this case, you just don't want the value under the radical to be negative (otherwise the result is an imaginary number).
\n" ); document.write( "So, the domain is
\n" ); document.write( "all real numbers equal to or greater than zero
\n" ); document.write( "OR
\n" ); document.write( "[0, +oo)
\n" ); document.write( "where
\n" ); document.write( "+oo is positive infinity
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