Transformations Review

Dilations preserve...

• Shape

• Size

• Shape & size

The image shows what type of transformation

• Rotation

• Translation

• Reflection

• Dilation

What transformation is happening to the red triangle to get to the blue triangle?

• Translation

• Rotation

• Reflection

• Dilation

Describe the Transformation

• Translation

• Rotation

• Reflection

• Dilation

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?

T_{(x + 2, y - 3)}

• translate up 2, left 3

• translate right 2, up 3

• translate right 2, down 3

• translate left 3, right 2

Reflect the point (2, -4) over the y-axis.

• (-4, 2)
• (-2, 4)
• (-2, -4)
• (2, 4)

Reflect (6, -3) over the line x-axis.

• (6, 3)
• (-6, -3)
• (-3, 6)
• (3, -6)

How is triangle ABC being translated to triangle A'B'C'?

• up 3, left 8
• up 9, left 4
• down 3, right 8
• down 9, right 4

∆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)