Unit 1 Test

Transformation that changes the size of a figure, but not its shape.

• Dilation

• Reflection

• Rotation

• Translation

Johnny slides a sofa across the floor of the living room. Which type of transformation is this an example of?

• Dilation

• Reflection

• Rotation

• Translation

Describe what series of transformations moves Triangle ABC to Triangle A'B'C'.

• translation 6 units right and 2 units down

• translation 6 units left and 2 units up

• rotation of 180° about the origin

• reflection across the y-axis

If you reflect Triangle ABC across the x-axis, what will be the coordinates of the new triangle?

• A' (5,2) B' (5,6) C'(1,2)

• A' (3,1) B' (7,3) C'(1,6)

• A' (5,-2) B' (5,-6) C'(1,-2)

• A' (-3,-1) B' (-7,-3) C'(-1,-6)

Solve for the missing measurement.

• 12

• 15

• 60

• 80

Given point C at (-1,4). Where will the new point C' be if it is translated (x+2 , y-3)?

• (3,1)

• (1,1)

• (-3,7)

• (1,7)

A square is translated using the rule (x – 5, y + 3). Describe the movement of the square on the coordinate plane as a result of the translation.

• down five units and up three units

• right five units and down three units

• left five units and down three units

• left five units and up three units

Given point A at ( −6, −4). Where will the new point (A’) be if it is rotated 180⁰ around the origin?

• (−4, 6)

• (4, −6)

• (−4, −6)

• (6, 4)

Which of the following is the rule for this transformation?

• Rotation 90⁰ counterclockwise around the origin

• Rotation 90⁰ clockwise around the origin

• Reflection across y = 1

• Reflection across the x-axis

Translate (x + 2, y)

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