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What is the equation of the parabola in standard form whose focus is at (-10, -1) and whose directrix is the line x=−8?

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Final answer:

The equation of the parabola in standard form whose focus is at (-10, -1) and directrix is the line x = -8 is y² + 2y = 8x + 79.

Step-by-step explanation:

The equation of the parabola in standard form whose focus is at (-10, -1) and directrix is the line x = -8 can be found using the following formula:

(x - h)² = 4p(y - k)

where (h, k) is the vertex and p is the distance between the vertex and the focus or directrix.

In this case, the vertex is (-10, -1) and the directrix is x = -8. Since the directrix is a vertical line, the parabola opens horizontally. Therefore, the equation of the parabola is:

(y + 1)² = 4(2)(x + 10)

Simplifying the equation gives:

y² + 2y + 1 = 8x + 80

So, the equation of the parabola in standard form is:

y² + 2y = 8x + 79

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