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Bailey.Nae
Group Title
HELP PLEASE
A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward.
 2 years ago
 2 years ago
Bailey.Nae Group Title
HELP PLEASE A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward.
 2 years ago
 2 years ago

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FeoNeo33 Group TitleBest ResponseYou've already chosen the best response.1
height of the parabola in inches: Take the formula to be y = ax^2 The focus of the parabola is 2 inches up, which means a/4 = 2 ==> a = 8... the equation is: y = 8x^2
 2 years ago

Bailey.Nae Group TitleBest ResponseYou've already chosen the best response.1
thank you , what if it was 6 inches?
 2 years ago

Bailey.Nae Group TitleBest ResponseYou've already chosen the best response.1
I would do the same thing right?
 2 years ago

FeoNeo33 Group TitleBest ResponseYou've already chosen the best response.1
Replace the 2 with a 6. Which means a/4 = 2 ==> a = 8.  a/4 = 6 ==> a = 24. y = 24x^2
 2 years ago

Bailey.Nae Group TitleBest ResponseYou've already chosen the best response.1
why would it always be four?
 2 years ago

FeoNeo33 Group TitleBest ResponseYou've already chosen the best response.1
Yeah, I believe so. I think it's just the formula. I'll check very quickly for you tho.
 2 years ago

Bailey.Nae Group TitleBest ResponseYou've already chosen the best response.1
Noo noo , you don't have to i believe you lol I was just wondering , but thank you So much (:
 2 years ago

FeoNeo33 Group TitleBest ResponseYou've already chosen the best response.1
Whoops, y = ax^2 is the formula, I guess whatever the 'x' is, but at least you have the answer. Off to other post, later, welcome.
 2 years ago
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