Unit 3A – CP CFA: Transformations

Unit 3A – CP CFA: Transformations

Assessment

Flashcard

Mathematics

8th Grade

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape, called the image.

2.

FLASHCARD QUESTION

Front

What are the four main types of transformations?

Back

The four main types of transformations are translation, rotation, reflection, and dilation.

3.

FLASHCARD QUESTION

Front

How does a translation affect the coordinates of a point?

Back

A translation moves a point a certain distance in a specified direction, changing its coordinates according to the rule (x, y) -> (x + a, y + b), where a and b are the distances moved in the x and y directions respectively.

4.

FLASHCARD QUESTION

Front

What happens to the coordinates of a point when it is rotated 180° about the origin?

Back

The coordinates of a point (x, y) become (-x, -y) after a 180° rotation about the origin.

5.

FLASHCARD QUESTION

Front

What is the algebraic rule for translating a point 5 units to the right and 8 units down?

Back

The algebraic rule is (x, y) -> (x + 5, y - 8).

6.

FLASHCARD QUESTION

Front

How do you reflect a point across the y-axis?

Back

To reflect a point (x, y) across the y-axis, the new coordinates become (-x, y).

7.

FLASHCARD QUESTION

Front

What is the result of reflecting a point across the line x = -2?

Back

To reflect a point (x, y) across the line x = -2, the new x-coordinate is calculated as -2 - (x + 2), resulting in the new coordinates (-4 - x, y).

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