MEE3 Unit 9 Terms and Practice /Review PDF

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key terms and practice to prepare you for the OA...

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MEE3 Unit 9 Terms and Practice

flip the figure fold and it meets

Ex 1. Find the points and graph the image under the translation defined as (x,y) → (x + 5, y + 1) G (-3, -1), T (-1, -1), B (-3, -5)

Find the image of each point (add 5 to x and add 1 to y) G’ (-3 + 5, -1 + 1) = (2, 0) T’ (-1 + 5, -1 + 1) = (4, 0) B’ (-3 + 5, -5 + 1) = (2, -4)

Ex 2. Describe the following transformations.

A reflection (Fold it and it meets exactly)

A rotation (Pivot around a point)

A translation and then a reflection. (Slide up and then flip)

2 Ex 3. Which transformation takes the figure back to itself? a. XIII A reflection in horizontal line

b.

A half turn or 180° rotation Ex 4. If A is the figure, describe the transformations for B, C, and D. A B

C

B. 90° rotation C. 270° rotation D. 180° rotation

D

Practice Problems 1. Find the points and graph the image under the translation defined as (x,y) → (x – 4, y – 2). A(5, 5), B(4, 3), C(6,3) 2. Describe the following transformations. Match A-C with R-W. Choose one answer. You may use the same answer more than once. A.

B.

C.

R. Translation S. 90° Rotation T. 180° Rotation or half turn U. Reflection in vertical line V. Reflection in horizontal line W. Translation and Reflection

3. Which transformation takes the figure back to itself? Match A-C with R-W. You may choose more than one answer. You may use the same answer more than once. A.

XCXII

B.

Answers. 1. A’ (1,3), B’ (0,1), C’ (2,1)

C.

R. Translation S. 90° Rotation T. 180° Rotation or half turn U. Reflection in vertical line V. Reflection in horizontal line W. Translation and Reflection

2. A – T 3. A – V

B–U B–T

C–W C–T...