M3 Reviewer

Joan has a photo of her family that is placed in a frame. The original photo is 3 inches by 5 inches. She enlarges the photo by a scale factor of 3 to place in her room. What is the dimension of the photo in her room?

• 9 inches by 12 inches

• 9 inches by 15 inches

• 6 inches by 10 inches

• 7 inches by 14 inches

What is the scale factor for this dilation?

• 1/2

• 7/3

• 2/1

• 10/3

The diagram shows a rectangle that is 3 cm by 5 cm in measure. Which is the measure of a rectangle that is similar to the rectangle above?

• 10.5 cm X 17.5 cm

• 6 cm x 8 cm

• 4 cm x 6 cm

• 4.5 cm x 8 cm

Each side length of the rectangle at the right is multiplied by 3. What is the new area?

• 1296

• 432

• 48

• 144

The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?

• 12 feet
• 16 feet 
• 10 feet
• 4 feet

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Opening a door is what type of transformation?( (a)   ). It is also a good example of a rigid motion.

Turning around a point

• Translation

• Reflection

• Rotation

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)

Choose the correct reflected image.

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