Transformations Geometry

Front

What is the rule for rotation of 270 degrees?

Back

(x, y) --> (-y, x)

Front

What is the rule for rotation of 90 degrees?

Back

(x, y) --> (y, -x)

Front

When translating an image to the right, what happens to the x-coordinate?

Back

You add a number to x (x +).

Front

How do you translate triangle ABC to triangle A'B'C' if you move it left 2 and up 9?

Back

The translation is left 2, up 9.

Front

How is Quadrilateral EFGH translated to E'F'G'H' if it moves 3 left and 6 down?

Back

The translation is 3 left, 6 down.

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape.

Front

What are the four main types of transformations?

Back

Translation, Rotation, Reflection, and Dilation.

Front

What does it mean to translate a figure?

Back

To translate a figure means to slide it in a straight line without rotating or flipping it.

Front

What is the effect of a reflection over the x-axis on a point (x, y)?

Back

The point becomes (x, -y).

Front

What is the effect of a reflection over the y-axis on a point (x, y)?

Back

The point becomes (-x, y).