Writing the equation of a parabola given the focus and directrix

Writing the equation of a parabola given the focus and directrix

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to plot the focus and directrix of a parabola, emphasizing the importance of labeling. It discusses the orientation of the parabola in relation to the axis of symmetry and how it opens towards the focus. The tutorial guides viewers through finding the vertex by calculating the midpoint between the focus and directrix. It explains the significance of the value P, its direction, and how it affects the parabola's equation. Finally, the video demonstrates how to write and simplify the equation of a parabola using the determined values.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of labeling points when plotting a parabola?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What does it mean for a parabola to open towards the focus?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the relationship between the focus, directrix, and vertex of a parabola.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe how to find the vertex of a parabola given the focus and directrix.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the value of P in the context of a parabola?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the direction of P affect the orientation of the parabola?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the equation of a parabola in terms of H, K, and P?

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