Unit 3 L1-L5: Transformations Flashcard Review

Front

What are the coordinates of point C' after rotating triangle ABC 90 degrees counterclockwise about the origin if C is at (3, 4)?

Back

(4, -3)

Front

What is the rule for translating a point 3 units up and 2 units to the right?

Back

(x, y) → (x + 2, y + 3)

Front

What is the term for a transformation that creates a mirror image of a figure?

Back

Reflection

Front

What does it mean when a dilation has a scale factor greater than one?

Back

The dilation is an enlargement.

Front

What is the definition of translation in geometry?

Back

To slide or move a figure without changing its shape or size.

Front

What are the coordinates of point A' after rotating point A(1, 2) 90 degrees clockwise about the origin?

Back

(2, -1)

Front

What is the effect of a dilation with a scale factor less than one?

Back

The dilation is a reduction.

Front

What is the transformation that involves flipping a figure over a line called?

Back

Reflection

Front

How do you perform a rotation of 180 degrees about the origin?

Back

Change the sign of both coordinates: (x, y) → (-x, -y)