document.write( "Question 103077: For the given functions f and g, find the requested function and state its domain.\r
\n" ); document.write( "\n" ); document.write( "f(x) = 16 - x2; g(x) = 4 - x
\n" ); document.write( "Find f + g.\r
\n" ); document.write( "\n" ); document.write( "Thank you for your help.
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Algebra.Com's Answer #74955 by stanbon(75887)\"\" \"About 
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f(x) = 16 - x2; g(x) = 4 - x
\n" ); document.write( "Find f + g.
\n" ); document.write( "f+g = 16-x^2+4-x
\n" ); document.write( "= -x^2-x+20
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\n" ); document.write( "The graph would be a parabola opening downward with
\n" ); document.write( "vertex at x = -b/2a = -(-1/-2)= -1/2\r
\n" ); document.write( "\n" ); document.write( "Then f(-1/2) = -(-1/2)^2-(-1/2)+ 20 = -1/4+1/2+20 = 20 1/4
\n" ); document.write( "--------------
\n" ); document.write( "Domain is All Real Numbers
\n" ); document.write( "Range is All Real Numbers <= 20 1/4
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\n" ); document.write( "Graph:
\n" ); document.write( "\"graph%28400%2C300%2C-10%2C10%2C-10%2C30%2C-x%5E2-x%2B20%29\"
\n" ); document.write( "==============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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