Ch. 9 Flashcard Review

Ch. 9 Flashcard Review

Assessment

Flashcard

Mathematics

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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14 questions

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1.

FLASHCARD QUESTION

Front

Where would A' be if you translated A 3 units to the right and 4 units down?

Back

A' is at (-1, 0). To find this, add 3 to the x-coordinate and subtract 4 from the y-coordinate of point A.

2.

FLASHCARD QUESTION

Front

Dilate Point B by a scale factor of 1/2.

Back

The new coordinates of Point B after dilation by a scale factor of 1/2 are (-1.5, 1). This means you multiply each coordinate by 1/2.

3.

FLASHCARD QUESTION

Front

What is the image of S (2, -5) after a rotation of 90° clockwise about the origin?

Back

The image S' after a 90° clockwise rotation is (-5, -2). This involves switching the coordinates and changing the sign of the new x-coordinate.

4.

FLASHCARD QUESTION

Front

What is the rule for the following reflection across y = -1?

Back

To reflect a point across y = -1, subtract the y-coordinate of the point from -1 and then double that result, keeping the x-coordinate the same.

5.

FLASHCARD QUESTION

Front

Reflect the point (-2, -2) over the x-axis.

Back

The reflected point is (-2, 2). Reflecting over the x-axis changes the sign of the y-coordinate.

6.

FLASHCARD QUESTION

Front

What is the effect of translating a point 5 units left and 2 units up?

Back

The new coordinates will be (x - 5, y + 2). This means you subtract 5 from the x-coordinate and add 2 to the y-coordinate.

7.

FLASHCARD QUESTION

Front

How do you perform a dilation on a point?

Back

To perform a dilation, multiply each coordinate of the point by the scale factor.

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