Posted by Jenn on Tuesday, March 19, 2013 at 11:44am.
f(x)=-2x^2+4x+1
= -2(x^2 - 2x +1 - 1) + 1
= -2( (x-1)^2 -1) + 1
= -2(x+1)^2 + 3
you should be able to state the properties you are looking for from that.
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