document.write( "Question 451608: Using equation Tickets=-0.2x^2+12x+11 describe what happens to ticket sales as the time passes? \n" ); document.write( "

Algebra.Com's Answer #310540 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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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( "Tickets = -0.2x^2+12x+11  |Completing the square to find the vertex 
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document.write( "        = -.2[(x -30)^2  - 900] + 11
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document.write( "        = -.2(x-30)^2 + 180 + 11
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document.write( "        = -.2(x-30)^2 + 191  Descriptive of a parabola opening downward V(30,191)
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document.write( "Ticket sales peak when x = 30 at 191ticket sales and decline after that. \n" );
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