Describing effects of transformations

Which rule shows a reflection over the x axis, followed by a translation right 2, down 1?

• T<2,-1> ^o R_{x axis} 
• T<-2,1> ^o R_{x axis} 
•  R_{x axis} ^o T<-2,1> 
•  R_{x axis} ^o T<2,-1> 

What sequence of transformations will get you from shape BCD to shape B"C"D" in two steps?

• Rotation, then Rotation
• Rotation, then Dilation
• Reflection, then Rotation
• Translation, then Reflection

This is the last time we will do composition of transformations (outside of what you see on your test). How confidence are you on rigid motions and their compositions?

• WOOT! I am the BEST as rigid motions!

• Confident

• Could be doin' better

• Could be doin' worse

• Not confident at all

(2, 6) -- Translate up 3, left 1 and rotate 180°

• (-1,-9)

• (1, -9)

• (5,5)

• (-5,5)

If QR is rotated 90 degrees clockwise about the origin and then translated 2 units to the left and 3 units up, what are the endpoints of the resulting image?

• Q'(1, 2) R'(-4, 4)

• Q'(-1, -3) R'(1, 2)

• Q'(-3, 1) R'(2, -1)

• Q'(-5, 4) R'(0, 2)

If the rectangle were rotated 90º clockwise about the origin then translate it (x + 4, y + 4), what would be the coordinates of Z'?

• (2, -2)

• (-2, -3)

• (2, 1)

• (2, 4)

Describe the transformation shown

• Rotation of 270^o counter clockwise

• Translation right one unit and up one unit

• Dilation by a scale of 2

• Dilation by a scale of 1/2

In doing composite transformations, the order that you do them doesn't matter

• True

• False

What is the third step in the composition?

R_D,90(r_y-axis(T_2,-3(triangle ABC)))

• Translation up 2, left 3

• Translation right 2, down 3

• Draw triangle ABC

• Rotate about point D 90 degrees

• Reflect over y-axis

Name the series of transformations that maps ABC (the pre-image) onto DEF (the image).

The dotted triangle is the transformation between ABC and DEF.

• reflect over x-axis, then translate left 6 up 1

• reflect over y-axis, then translate down 6 left 1

• translate right 6 down 1, then reflect over x-axis

• rotate 90 clockwise, then reflect over y-axis