Math 2 - 7:05am-8:26am

Front

A rotation of 180° about the origin is equivalent to:

Back

(x, y) → (−x, −y)

Front

Which transformation preserves orientation and distance?

Back

Translation

Front

E(2, 3) is dilated by scale factor 3, centered at the origin. What are the new coordinates?

Back

(6, 9)

Front

The rule for reflecting over the y-axis is:

Back

(x, y) → (−x, y)

Front

Which transformation always produces a congruent figure?

Back

Reflection

Front

What is the definition of a transformation in geometry?

Back

A transformation is a function that maps a set of points to another set of points, altering their position, size, or orientation.

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.

Front

What is the scale factor in a dilation?

Back

The scale factor is the ratio of the distance from the center of dilation to a point on the figure after dilation to the distance from the center to the original point.

Front

What is the effect of a reflection over the x-axis?

Back

The effect of a reflection over the x-axis is to change the sign of the y-coordinate: (x, y) → (x, -y).

Front

What is the effect of a reflection over the y-axis?

Back

The effect of a reflection over the y-axis is to change the sign of the x-coordinate: (x, y) → (-x, y).