Question

40 POINTS

Use the image to determine the type of transformation shown.

Image of polygon ABCD and a second polygon A prime B prime C prime D prime to the right.

Horizontal translation
Vertical translation
Reflection across the y-axis
270° counterclockwise rotation

Answer 1

Horizontal translation

Explanation:

Answer 2

(a) Horizontal translation

Explanation:

You want to know the transformation that maps quadrilateral ABCD to A'B'C'D'.

Transformation

The polygons are the same size and shape so a rigid transformation (translation, rotation, reflection) is involved. The order of vertices is clockwise in both polygons, so reflection is not involved.

Movement

Line AB is the same line as A'B', so the polygon has been moved in a direction parallel to that line: horizontally.

The type of transformation shown is horizontal translation, choice A.

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