Extra Credit

Extra Credit

Assessment

Flashcard

Mathematics

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the line of reflection across the x-axis?

Back

The line of reflection across the x-axis is a horizontal line where each point (x, y) is reflected to (x, -y).

2.

FLASHCARD QUESTION

Front

How do you dilate a point by a scale factor of 1/2?

Back

To dilate a point (x, y) by a scale factor of 1/2, multiply both coordinates by 1/2, resulting in (x/2, y/2).

3.

FLASHCARD QUESTION

Front

Back

4.

FLASHCARD QUESTION

Front

What is a scale factor in dilation?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a shape. For example, a scale factor of 2 doubles the size.

5.

FLASHCARD QUESTION

Front

Back

6.

FLASHCARD QUESTION

Front

What happens to a point when reflected across the y-axis?

Back

When a point (x, y) is reflected across the y-axis, it becomes (-x, y).

7.

FLASHCARD QUESTION

Front

What is the formula for dilating a point (x, y) by a scale factor k?

Back

The formula is (kx, ky).

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