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OpenStudy (anonymous):
f(x)=-2x^2+2x+3 Find the vertex
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OpenStudy (amistre64):
x = -2/-4 = 1/2
OpenStudy (amistre64):
y = -2(1/4) +4 if i see it right
OpenStudy (amistre64):
3.5 ... 7/2.
OpenStudy (amistre64):
v = (1/2 , 7/2) then
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