document.write( "Question 440157: Find the domain and the range of the given function.
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\n" ); document.write( "C. domain: {x|x ≤ 3}; range: {y|y ≤ 9}
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Algebra.Com's Answer #304142 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi\r
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document.write( "Using the vertex form of a parabola,  where(h,k) is the vertex
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document.write( "f(x) = -x^2 + 6x   |Completing Square to find the Vertex
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document.write( "y = -[(x-3)^2 - 9]
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document.write( "y = -(x-3)^2 + 9      |represents parabola opening downward, a<0 
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document.write( "vertex Pt(3,9) f(3) = 9 is a maximum point
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document.write( "Domain:  and Range: {y|y ≤ 9}
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