Topic: Focus of a Parabola
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Answers to Common Questions
What is the vertex and focus of this parabola:
In the parabola, xU2-20y=0, the vertex is 7 and the focus is 9. Read More »
Source: http://www.chacha.com/question/what-is-the-vertex-and-focus-of-th...
What is the focus of a parabola?
The focus of a parabola is a fixed point on the interior of a parabola used in the formal definition of the curve. Read More »
Source: http://www.chacha.com/question/what-is-the-focus-of-a-parabola
What is the formula for finding the focus of a parabola?
To the focus and directrix, we need to have equations that give an up or down facing parabola in the form (x - h)2 = 4p(y - k). Read More »
Source: http://www.chacha.com/question/what-is-the-formula-for-finding-th...
More Common Questions
Answers to Other Common Questions
1) Converting this into standard form, it is, "y^2 = x - 4" 2) A standard form of parabola equaiton is "(y - k)^2 = 4a(x - h)' whose, vertex is (h. k) and focus is (a + h, k) 3) Comparing the equation in (1) with the standard form in (2), h...
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Source: http://answers.yahoo.com/question/index?qid=20100124110931AAGGvL7
Standard form of vertical parabola: y - k = (1/4p)(x - h)^2, where (h, k) is the vertex and p is the distance from the vertex to the focus and the directrix y = x^2 + 3x (take half of 3, which is 3/2, and square it to 9/4; add 9/4 to both s...
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Source: http://answers.yahoo.com/question/index?qid=20100715210336AAkStWn
x = -2(y - 3)^2 - 2 Look in your textbook for the general equation of the parabola x = A(y -h)^2+ k There will be an equation for the focus in it. I hope I have given u a step up! Source(s): brain cells
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Source: http://answers.yahoo.com/question/index?qid=20090807121734AAI3Q67
I'm sorry you haven't had an answer. This is the sort of question you might have better luck with if you posted it in the Science and Mathematics category. The people browsing there my understand the principles involved in your question, an...
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Source: http://answers.yahoo.com/question/index?qid=20080608100107AAg1zrE
I'm not exactly sure how to tackle this problem but use could use the formula 4p(y-k) = (x-h)^2, plug in your values, and solve.
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Source: http://www.chacha.com/question/what-is-the-equation-for-a-parabol...
The focus of a parabola is a fixed point on the interior of a parabola used in the formal definition of the curve.
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Source: http://www.chacha.com/question/how-do-you-find-focus-and-directri...
Sqrt[(x-0)2 + (y - f)2] = sqrt[(x - x)2 + (y - (-f))2]. Thanks!
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Source: http://www.chacha.com/question/how-do-you-find-a-parabolas-focus
