Reflect, Dilate, Translate

Dilate Point B by a scale factor of 1/2

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

What is the rule for the dilation pictured below?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x , 2y)

• (x, y) → (2x, 3y)

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

• right 2, down 5

• right 2, down 9

• left 2, up 9

• left 2, down 9

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d

Dilate Point B by a scale factor of 3:

• (12,0)

• (12,12)

• (4,3)

• (0,12)

Which of the following is the algebraic representation for a dilation?

• (x, y) → (-x,-y)

• (x, y) → (3x,3y)

• (x, y) → (x+2,y-3)

• (x, y) → (y,x)

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

If the red triangle is rotated 180 degrees, then reflected over y=2 what is the final image?

• Green Triangle

• Blue Triangle

• Orange Triangle

• Red Triangle

Name the series of transformations that maps ABC onto DEF

• reflect over x then translate left 6 up 1

• reflect over y then translate down 6 left 1

• translate right 6 down 1, then reflect over x

• rotate 90 clockwise then reflect over y