Transformations Review

What does a translation do to an image?

• Turns it 90* clockwise
• Mirrors it
• Shrinks it
• Slides it

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

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

Determine where X' would be if you translated X 3 units to the left and 9 units down.

• (-4, 4)
• (-10, 2)
• (-4, -5)
• (-1, 5)

What is true for a pre-image and image when a reflection is preformed?

• The image is larger
• The pre-image is larger
• The image has different angle values
• The pre-image and image are the same size

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

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

Reflecting over the y-axis changes the sign of the ____-_____________. 

• x-axis
• x-coordinate
• y-coordinate
• none of the above

∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?

• S'(3, 7)
• S'(-3, 7)
• S'(-3, -7)
• S'(3, 7)

The point that is to be transformed is called the:

• Pre-Image
• Image
• Post-Image
• Triangle

After being transformed the new point is called a(n):

• Pre-Image
• Post Image
• Alternate Image
• Image

Triangle A is rotated 90° clockwise with the origin as the center of rotation to create a new figure. Which rule describes this transformation?

• (x,y)→(y, -x) 
• (x,y)→(-x,-y)
• (x,y)→(-y,x)
• (x,y)→(x,y)