document.write( "Question 1032582: What happens when you change a, h, and k in the equation y = a(x ­ h)2 + k?\r
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Algebra.Com's Answer #647245 by Boreal(15235)\"\" \"About 
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a compresses the graph as it becomes larger. If positive, a makes it U shaped, if negative the opposite.
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\n" ); document.write( "The ones on the right have vertex (3,3), with equation (x-3)^2+3 and -(x-3)^2-3. The other one has equation (x+2)^2-4, so its vertex is (-2,-4) and is U shaped.
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