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Write a quadratic function whose focus is 0,2 and whose directrix is the equation y=6

User Erenon
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Final answer:

To write a quadratic function with a focus of (0,2) and a directrix of y=6, use the equation of a parabola and plug in the given values to get x^2 = 16y-32.

Step-by-step explanation:

To write a quadratic function with a focus of (0,2) and a directrix of y=6, we can use the formula for the equation of a parabola.

The general equation of a parabola with a vertical axis of symmetry is (x-h)^2 = 4p(y-k), where (h,k) is the vertex and p is the distance from the vertex to the focus or directrix.

In this case, the vertex is (0,2) and the directrix is y=6. The distance from the vertex to the directrix is 6-2 = 4. Therefore, p=4.

Plugging the values into the equation, we get x^2 = 4(4)(y-2). Simplifying further, x^2 = 16y-32 is the quadratic function with the given focus and directrix.

User Alundy
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