document.write( "Question 843835: Let the function f be defined by the equation
\n" ); document.write( "y = f(x),
\n" ); document.write( "where x and
\n" ); document.write( "f(x)
\n" ); document.write( "are real numbers. Find the domain of the function. (Enter your answer using interval notation.)
\n" ); document.write( "f(x) = x^2-49\r
\n" ); document.write( "\n" ); document.write( "The x^2-49 is supossed to be in a square root but my computer will not let me type the square root
\n" ); document.write( "

Algebra.Com's Answer #508362 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
You can type sqrt(x^2 - 49) or surround your formula in triple curly braces or use TeX input, e.g. . The domain of f(x) is the set where the expression inside the sqrt is non-negative, i.e. (-infty, -7] U [7, infty). \n" ); document.write( "
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