Unit 1 Catchup Plan

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way on the coordinate plane.

Front

What are the types of transformations?

Back

The main types of transformations are translation, reflection, rotation, and dilation.

Front

What is translation in geometry?

Back

Translation is a transformation that moves every point of a shape the same distance in a specified direction.

Front

How do you perform a translation on the coordinate plane?

Back

Take the point (or the corners of a shape) and count the number in the direction it states.

Front

What is reflection in geometry?

Back

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

Front

How do you perform a reflection on the coordinate plane?

Back

Count how far a point is from the axis it is being reflected over and count the same number on the opposite side.

Front

What is the axis of reflection?

Back

The axis of reflection is the line over which a shape is reflected.

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, while the x-coordinates remain the same.

Front

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

Back

The x-coordinates of the points of the shape change sign, while the y-coordinates remain the same.

Front

What is the difference between translation and reflection?

Back

Translation moves a shape without changing its orientation, while reflection flips a shape over a line.