Which transformation is illustrated by the accompanying ...



Name __________________________ Identifying Transformations

1. The area of triangle RST is 36 square inches. Under which transformation could the area of the image,

triangle R’S’T’, be greater than 36 square inches?

(A) dilation (B) reflection (C) rotation (D) translation

2. Ana drew two figures on the coordinate grid shown below.

[pic]

Which transformation did Ana apply to Figure A to get Figure B?

(A) rotated 90˚

(B) dilated by 6

(C) reflected in the y-axis

(D) translated 6 units to the left

| |Which transformation is illustrated by the accompanying diagram? |

| | |

| |[pic] |

| |Which transformation produces a figure that is always the mirror image of the original figure? |

| | |

| |In the accompanying diagram, figure B is the image of figure A, |

| | |

| |[pic] |

| | |

| |In the accompanying diagram, [pic] is the image of [pic] and [pic] |

| | |

| |[pic] |

| | |

| |Which type of transformation is shown in the diagram? |

| |(A) line reflection (C) translation |

| |(B) rotation (D) dilation |

| |The accompanying diagram shows the transformation of [pic] to [pic] |

| | |

| |[pic] |

| | |

| | |

| |Which type of transformation is shown in the diagram? |

| | |

| |Which transformation does not always result in an image that is congruent to the original figure? |

| | |

| |One function of a movie projector is to enlarge the image on the film. This procedure is an example of a |

| |(A) line of symmetry (C) translation |

| |(B) line reflection (D) dilation |

| |As shown in the accompanying diagram, the star in position 1 on a computer screen transforms to the star in position|

| |2. |

| | |

| |[pic] |

| | |

| |This transformation is best described as a |

| |(A) line reflection (C) rotation |

| |(B) translation (D) dilation |

| |A picture held by a magnet to a refrigerator slides to the bottom of the refrigerator, as shown in the accompanying |

| |diagram. |

| | |

| |[pic] |

| | |

| |This change of position is an example of a |

| |(A) translation (C) rotation |

| |(B) dilation (D) reflection |

| |The perimeter of [pic], the image of [pic], is twice as large as the perimeter of [pic]. What type of |

| |transformation has taken place? |

| |Which type of transformation is illustrated in the accompanying diagram? |

| | |

| |[pic] |

| | |

| |The accompanying diagram shows a transformation. |

| | |

| |[pic] |

| | |

| |Which transformation performed on figure 1 resulted in figure 2? |

| |In the accompanying diagram, ∆ABC is similar to but not congruent to ∆ A’B’C’. |

| | |

| |[pic] |

| | |

| |Which transformation is represented by ∆ A’B’C’? |

| |Which transformation does not always produce an image that is congruent to the original figure? |

| | |

| |The transformation of ∆ABC to ∆A’B’C’ is shown in the accompanying diagram. |

| | |

| |[pic] |

| | |

| |This transformation is an example of a |

| |(A) line reflection in line [pic] |

| |(B) rotation about point A |

| |(C) dilation |

| |(D) translation |

18. Triangle ABC and triangle A’B’C’ are plotted on the coordinate plane below.

[pic]

What is the name of the transformation applied to triangle ABC that resulted in triangle A’B’C’?

Describe how the coordinates of point A changed to the coordinates of point A’.

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