Boot Camp Day 8: Transformations

Describe a congruence transformation that maps the blue preimage to the green image.

• a 270° rotation about the origin

• a reflection in the line y=-x

• a reflection in the line y=-1

• a 180° rotation about the origin

Which congruence transformation maps the blue preimage to the green image?

• a 90° rotation about point C followed by a translation 3 units left and 2 units down

• a reflection in the x-axis followed by a translation 2 units right and 1 unit down

• a 180° rotation about the origin followed by a translation 5 units left and 1 unit down

• a reflection in the y-axis followed by a translation 4 units left and 3 units down

Which congruence transformations map triangle XYZ to triangle X"Y"Z"?

Select all that apply.

• reflection in the y-axis, followed by a reflection in the x-axis

• rotation of 90° counterclockwise about the origin, followed by a reflection in the y-axis

• rotation of 270° counterclockwise about the origin, followed by a reflection in the x-axis

• reflection in the x-axis, followed by a reflection in the y-axis

• reflection in the x-axis, followed by a rotation of 90° counterclockwise about the origin

A reflection in a line maps point B(3,-1) to point B′(11,-1). What is the equation of the line of reflection?

• x = 8

• y = 8

• x = 7

• y = 7

Write a rule to translate triangle P'Q'R' to triangle PQR.

• (x - 4, y + 1)

• (x + 4, y - 1)

• (x + 1, y - 4)

• (x - 1, y + 4)

Write a rule for the reflection.

• (-y, x)

• (-x, -y)

• (-x, y)

• (x, -y)

Which transformation of DEFG is a 90 degree clockwise rotation about point P?

• 
• 
• 
• 

The vertices of triangle ABC are A(2,-1), B(0, 4), and C(-3, 5). Find the coordinates of the vertice A' of the image after the translation(x, y) to (x-1, y+3).

(type as a coordinate. Leave NO SPACES)

Find the scale factor of the dilation. Then tell whether the dilation is a reduction or an enlargement.

Write a coordinate rule for the dilation.

(leave no spaces in your answer)