How to write an ellipse in standard form to find the center, foci and vertices

How to write an ellipse in standard form to find the center, foci and vertices

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains how to work with ellipse equations by introducing two different formulas. It guides through rewriting a given equation to match these formulas using the method of completing the square. The process involves factoring and simplifying the equation to find the values of A, B, and C, which are crucial for identifying the center, vertices, and foci of the ellipse. The tutorial concludes with a summary of the steps and the importance of understanding these concepts in geometry.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary difference between the two ellipse formulas discussed?

The position of the center

The value of the constant term

The length of the major axis

The orientation of the ellipse

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it necessary to rewrite the given equation?

To convert it into a circle equation

To simplify the calculation of the area

To match it with a standard form for easier analysis

To eliminate the constant term

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in completing the square for the x terms?

Adding a constant to both sides

Dividing by the coefficient of x

Factoring out the coefficient of x^2

Multiplying by a constant

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the term 'completing the square' refer to?

Dividing both sides by a square

Rewriting a quadratic expression as a perfect square trinomial

Finding the square root of both sides

Multiplying both sides by a square

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you ensure the equation equals 1 after completing the square?

Add the same constant to both sides

Divide the entire equation by the constant term

Subtract the constant term from both sides

Multiply the entire equation by the constant term

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between a^2, b^2, and c^2 in an ellipse?

a^2 = b^2 + c^2

a^2 = b^2 * c^2

a^2 = c^2 - b^2

a^2 = b^2 - c^2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of ellipses, what does the term 'foci' refer to?

The endpoints of the minor axis

The points inside the ellipse that define its shape

The points on the major axis

The center of the ellipse

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