infinitemoes
Please help! what are the focus and directrix of the parabola with equation y =1/16x?
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ToniStark
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Hi,
I see, its parabola
khalid.decanc
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im parabola.lol
ToniStark
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infinitemoes
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alrighttt..
ToniStark
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Complete the square on the x terms. Divide the coefficient on the 1st degree x term by 2 and square it. Add the result to both sides of the equation. That will give you a perfect square on the left
infinitemoes
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yeah I'm just completely lost and I have less than 2 min to get this done. think i'm just gonna take a guess on this one and hope for the best. lol
ToniStark
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|dw:1370238694623:dw|
ToniStark
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now???
infinitemoes
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okay, soo.. would the -4 be my directrix? i'm still so lost. lol there's an option for focus (0,4) and directrix -4
ToniStark
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yup!
infinitemoes
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awesome. thank you so much!
ToniStark
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my pleasure.