Math Transformations Review

The red triangle has been dilated by a scale factor of 1/4, which triangle is its new image?

• green triangle

• red triangle

• black triangle

• none of these

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)

What transformation is visible?

• Reflection

• Translation

• Dilation

• Rotation

Name the transformation.

• Translation

• Reflection

• Rotation

Which transformation is not a rigid transformation?

• Translation

• Reflection

• Rotation

• Dilation

A transformation that 'turns' a figure about a fixed point at a given angle and a given direction.

• rotation

• translation

• reflection

• dilation

A turn is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

How is trapezoid ABCD translated to trapezoid A'B'C'D'?

• Translated 5 units down and 5 units to the right

• Translated 5 units down and 1 unit to the right

• Translated 8 units down and 5 units to the right

• Translated 5 units down and 4 units to the right

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

• (5,3)

• (20,12)

• (-20,-12)

• (-5,-3)

Rotate the point (-3,-4) around the origin 180 degrees. State the image of the point.

• (-4,-3)

• (-4,3)

• (4,-3)

• (3,4)