Transformations on Coordinate Plane

Front

What is a transformation?

Back

A transformation is a mathematical operation that changes the position, size, or shape of a figure on the coordinate plane.

Front

What is a pre-image?

Back

The pre-image is the original figure before any transformation is applied.

Front

What is an image in transformations?

Back

The image is the resulting figure after a transformation has been applied to the pre-image.

Front

What does it mean for two figures to be congruent?

Back

Two figures are congruent if they have the same shape and size, even if their positions are different.

Front

What is a reflection in geometry?

Back

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

Front

What is a rotation in geometry?

Back

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

Front

What is a translation in geometry?

Back

A translation is a transformation that slides a figure from one position to another without changing its size or shape.

Front

What is dilation in geometry?

Back

Dilation is a transformation that changes the size of a figure but keeps its shape the same, defined by a scale factor.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation.

Front

How do you perform a reflection across the x-axis?

Back

To reflect a point (x, y) across the x-axis, the new point will be (x, -y).