Dilations and Scale Factor A

Dilations and Scale Factor A

Assessment

Flashcard

Mathematics

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but maintains its shape, either enlarging or reducing it.

2.

FLASHCARD QUESTION

Front

What happens to a figure when the scale factor is greater than 1?

Back

The figure enlarges.

3.

FLASHCARD QUESTION

Front

What happens to a figure when the scale factor is less than 1 but greater than 0?

Back

The figure reduces.

4.

FLASHCARD QUESTION

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

5.

FLASHCARD QUESTION

Front

If a triangle has vertices at (1, 2), (4, 2), and (1, 5), what are the new coordinates after a dilation with a scale factor of 2 centered at the origin?

Back

The new coordinates are (2, 4), (8, 4), and (2, 10).

6.

FLASHCARD QUESTION

Front

If a dilation has a scale factor of 1, what happens to the figure?

Back

The figure remains unchanged.

7.

FLASHCARD QUESTION

Front

What is the effect of a negative scale factor in a dilation?

Back

A negative scale factor reflects the figure across the origin and may also change its size.

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