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Re: Which is the equation of the parabola. [#permalink]
A and B are straight lines
C and C are circles

Which one is parabola?
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Which is the equation of the parabola. [#permalink]
1
Option C

f(x)=(x+4)^2=x^2+8x+4=0
f'(x)=2x+8=0
x=-4
y=0
=> min at (-4,0)

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Which is the equation of the parabola. [#permalink]
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