test - transformations

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

• (x-2, y+5)
• (x+2, y-9)
• (x-2, y+9)
• (x-9, y+2)

What transformation is happening?
(x, y) ----> (x + 2, y - 3) 

• slide up 2, left 3
• slide right 2, up 3
• slide right 2, down 3
• slide left 3, right 2

Identify the transformation from A to D.

• 90^o Clockwise Rotation

• 180^o Counter Clockwise Rotation

• 270^o Clockwise Rotation

• 360^o Counter Clockwise Rotation

Point (-3,-3) is rotated 360 degrees clockwise about the origin.  Where is the new point located?

• (3,3)
• (-3,3)
• (3,-3)
• (-3,-3)

Describe the translation of Point A (3, -8) to A'(-4, -5).

• (x - 4, y - 5)

• (x + 7, y - 3)

• (x - 7, y + 3)

• (x - 3, y + 7)

What transformation is the image showing?

• Rotation 180 degrees clockwise

• Dilation by 2

• translation to the right

• Dilation by 1/2

(x, y) -------> (x, -y) is a reflection over the x axis.       

• True
• False

Triangle ABC will be dilated by a scale factor of 1/2.  What will be the coordinates of C'?

• (-1, -2.5)
• (12, 6)
• (3, -1.5)
• (0, 1.5)

Triangle GHI is reflected across the x-axis.  What are the coordinates of I'?

• (-2, 6)
• (2, 6)
• (-6, -2)
• (6, 2)

What is the rule for the dilation pictured?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x, 2y)

• (x, y) → (2x, 3y)

Tags

8.G.4