EOY Transformations review

Front

Translations, reflections and rotations are all known as ________________________.

Back

Transformations

Front

Name the transformation: A flip over a line that creates a mirror image.

Back

Reflection

Front

Identify the transformation: Move a shape 5 units left and 1 unit up.

Back

Translation 5 units left, and 1 unit up.

Front

Reflect the image over the y-axis and then translate according to (x, y) → (x+4, y-3). Which quadrants will the image be located in?

Back

Quadrant III and IV

Front

Determine where X' would be if you translated X 3 units to the left and 9 units down: X(1, 4).

Back

(-2, -5)

Front

What is the definition of 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 is a translation?

Back

A translation is a transformation that moves every point of a shape the same distance in the same direction.

Front

What is a reflection?

Back

A reflection is a transformation that flips a shape over a line, creating a mirror image.

Front

What is a rotation?

Back

A rotation is a transformation that turns a shape around a fixed point at a certain angle.

Front

What is the effect of reflecting a shape over the x-axis?

Back

The y-coordinates of the points of the shape change sign.