1. Warm Up Week 22

2. Monday Find the perimeter of this triangle.
Preimage: small black square
Image: large grey square
Which represents the dilation?
A. (x, y) → (0.5x, 0.5y)
B. (x, y) → (2x, 2y)
C. (x, y) → (3x, 3y)
D. (x, y) → (6x, 6y)

3. Tuesday
Jenya obtained the image of triangle ABC after a dilation with a scale factor of 3. The area of triangle ABC is 15 square centimeters, and its perimeter is 20 centimeters. Which of the following describes the area and perimeter of the new figure?
A. The area is 45 cm2 and the perimeter is 60 cm.
B. The area is 135 cm2 and the perimeter is 60 cm.
C. The area is 45 cm2 and the perimeter is 180 cm.
D. The area is 135 cm2 and the perimeter is 180 cm.
9. Which of the following lists shows the numbers below in order from greatest to least.
0.56, 5 × 10-4, 6 × 10-2, 0.006, 0.065
A. 0.56, 6 × 10-2, 0.065, 0.006, 5 × 10-4
B. 0.56, 0.006, 0.065, 6 × 10-2, 5 × 10-4
C. 0.56, 6 × 10-2, 0.006, 0.065, 5 × 10-2
D. 0.56, 0.065, 6 × 10-2, 0.006, 5 × 10-4

4. Wednesday
Carmen drew a cylinder and a cone with identical bases and heights. The volume of the cylinder is 60 cubic inches. What is the volume of the cone?
A. 20 in.3 C. 60 in.3
B. 30 in.3 D. 180 in.3
A triangle has vertices at (−4, 5), (−5, −3), and (−3, 1). The triangle is translated 6 units down and reflected across the x-axis. What are the coordinates of its image?
A. (−10, 5), (−11, −3), (−9, 1)
B. (10, −5), (9, 3), (6, −1)
C. (−4, 5), (−5, −3), (−3, 1)
D. (−4, 1), (−5, 9), (−3, 5)

5. Thursday
Which of the following best describes the relationship between the two variables in the scatter plot below?
A. positive linear association
B. negative linear association
C. no association
D. quadratic association
Juan drew a rectangle with a perimeter of 22 units. He then performed a dilation with scale factor of 2 on the rectangle. What is the perimeter of the resulting image?

6. Friday
Lisa analyzed the scatter plot below. Which of the following best describes the relationship between the two variables?
A. positive linear association
B. negative linear association
C. nonlinear association
D. no association
The quadrilateral shown is translated 7 units to the right and 5 units down. In which quadrant is the image of the quadrilateral located?
A. I C. III
B. II D. IV