How to find the focus and directrix of a parabola

How to find the focus and directrix of a parabola

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to determine the center, focus, and directrix of a parabola in standard form. It begins by identifying whether the parabola is vertical or horizontal, then calculates the center using the formula H, K. The focus is found by adding the value of P to the Y-coordinate of the center, and the directrix is determined by subtracting P from the Y-coordinate. The tutorial emphasizes understanding the relationship between the components and provides a step-by-step guide to solving the problem.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the first step in determining the characteristics of the conic section discussed?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine whether the conic section is vertical or horizontal?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the formula for finding the center of the conic section?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how to find the focus of the conic section.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the equation for the directrix of the conic section?

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