Unit: TransformationsStudent Handout 2

TRANSLATIONS

Name Answer Key

Date

TRANSLATIONS ON THE COORDINATE PLANE

A translation moves every point of a figure the same

the same distance

A translation can move a figure and/or

Translations are also thought of as

and

1. Translate the figure 5 units left and 2 unitsdown. Record the coordinates of the pre-imageand image in the table.

PRE-IMAGE IMAGE

A'(-3J 2)

Look for any patterns and describe whathappened to the x and y values in each orderedpair:

-Moving left 5 decreased all of the x-values by 5.-Moving down 2 decreased all of the y-values by2.

How can we represent this algebraically Q

2)

2. Translate the figure 4 units right and 3 unitsup. Record the coordinates of the pre-image andimage in the table.

PRE-IMAGE IMAGE

Look for any patterns and describe whathappened to the x and y values in each orderedpair:

-Moving right 4 increased all of the x-values by4.

-Moving up 3 increased all of the y-values by 3.

How can we represent this algebraicallyQ

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3. Record the coordinates of the pre-image andmage in the table below.

PRE-IMAGE IMAGE

Verbal description of the translation:

7 units left and 4 units up

Algebraic representation of the translation:

What do you notice about the line segments in thepre-image and image Q Do they change sizeQ

The line segments are congruent.

4. Record the coordinates of the pre-image and

image in the table.

PRE-IMAGE IMAGE

J?

Verbal description of the translation:

Algebraic representation of the translation:

What do you notice about the angle measures inthe pre-image and image O Do they change size O

The angle measures cre conc o uent.

5. Describe the translation: 6. Describe the translation: 7. Describe the translation:

M (12.7)+ M' 14)

13 left and 7 up

Summarize today's lesson:

N N' (-5.2)

1 right and 10 up 6 left and 7 down

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