Transformation Unit Test

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Olivia, Lucas, and Aiden are playing a video game where they have to move their characters based on given coordinates. Olivia's character is currently at point B (-10,-6). If a game event causes a dilation with the center at the origin and a scale factor of k = 1/2, what would be the new coordinates of Olivia's character?

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

Sofia is making a model of her house for a school project. If she wants to maintain the proportions of the actual house in her model, which of the following should be her scale factor?

• 2
• 3
• 1/3
• 1/2

Alexander, Ishaan, and Charlotte are working on a project in their geometry class. They are asked to dilate Point B on their project by a scale factor of 1/2. What would be the new coordinates of Point B?

• (1.5,-4)
• (-1.5,1)
• (-1,-1.5)
• (-2,-2)

Labeena is learning about transformations in her math class. She came across the term 'dilation'. In the context of her math class, what does 'dilation' mean?

• only an enlargement
• only a reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction
• all of the above

Determine how to translate triangle ABC to triangle A'B'C'.

• right two, down five
• right two, down 9
• left two, up 9
• left two, down 5

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d

Reflections over the x-axis change the sign of the ____-__________.

• y-coordinate
• x-coordinate
• y-axis
• x-axis

Definition: The figure before a transformation has occurred.

• Pre-image
• Image
• Translation
• Reflection