Name Scarlett Lopez Date 09-08-22 Class 4 LESSON 9-1 Reflections Practice B Tell whether each transformation appears to be a reflection. 1. Yes 2. NO (-8,2) Y (8,2) (2, 3) y =x (3, 2) 3. yes. 4. No (-3,-2) x (-3-2) Draw the reflection of each figure across the line. 5. 6. 7. Sam is about to dive into a still pool, but some sunlight is reflected off the surface of the water into his eyes. On the figure, plot the exact point on the water's surface where the sunlight is reflected at Sam. Sun Water Sam Reflect the figure with the given vertices across the given line. ( - 4, 4) ( - 1, - 4 ) (3 , - 2) ( 1 , - 1 ) 8. A(4, 4), B(3, -1), C(1, -2); y-axis 9. D(-4, -1), E(-2, 3), F(-1, 1); y = x -2 X 0 6.2 IC E (1,-3) (-2,-3) (-2,-1) (1,0) 10. P(1, 3), Q(-2, 3), R(-2, 1), S(1, 0); x-axis ( - 4, 3) ( - 1, 1 ) (-1,-1) 11. J(3, -4), K(1, -1), L(-1, -1), M(-2, -4); 'y = x 7 J 1.2- 2 K Is X -2010 2 -2 2 =2 1 M -2 Original content Copyright @ by Holt McDougal. Additions and changes to the original content are the responsibility of the Instructor. 9-4 Holt McDougal Geometry
LESSON 9-2 Name Date Problem Solving Translations 1. A checker player's piece begins at K and, through a series of moves, lands on L. What translation vector represents the path from K to L? K XA (4,-7) 3. In a quilt pattern, a polygon with vertices (3, -2), (7, -1), (9, -5), and (5, -6) is translated repeatedly along the vector (4, 5). What are the coordinates of the third polygon in the pattern? (11,8), (15,9), (17,5), (13,4) Choose the best answer. Class 2. The preimage of M' has coordinates (-6, 5). What is the vector that translates AMNP. to AM'N'P? 0 x 0 ·2 2. Pr M (3,-9) 4. A group of hikers walks 2 miles east and then 1 mile north. After taking a break, they then hike 4 miles east and set up camp. What vector describes their hike from their starting position to their camp? Let 1 unit represent 1 mile. <6,1> <6,17 05 5. In a video game, a character at (8, 3) moves three times, as described by the translations shown at right. What is the final position of the character after the three moves? Move 1: (2, 7) Move 2: (-10, -4) Move 3: (1, -5) A (-8, 3) B (-7, -2) C (1, 1) D (9, 2) 6. The logo is translated along the vector (8, 15). What are the coordinates of R'? ty S R ( - 4, 2) -8 0 ·2. F (4, 17) H (15, 18) 5 (12, 17) J (11, 19) 7. ADEF is translated so that the image of E has coordinates (0, 3). What is the image of F