Math 8 Semester Test Review

Front

What is the y-intercept of a graph?

Back

The y-intercept is the point where the graph crosses the y-axis. It represents the value of y when x is 0.

Front

What is a scaled copy?

Back

A scaled copy is a shape that is the same shape but different sizes.

Front

Which transformation is NOT a rigid motion?

Back

Dilation is NOT a rigid motion because it changes the size of the shape.

Front

What are translations, reflections, and rotations known as?

Back

They are known as Rigid Transformations.

Front

What is a reflection in geometry?

Back

A reflection is a type of transformation where a figure is 'flipped' over a line of symmetry, producing a mirror image.

Front

What is the definition of a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Front

What is the difference between rigid and non-rigid transformations?

Back

Rigid transformations preserve the shape and size of a figure, while non-rigid transformations change the size.

Front

What does it mean to translate a shape?

Back

To translate a shape means to slide it in any direction without rotating or flipping it.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point called the center of rotation.

Front

What is the line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.