Cumulative Flashcard #1 REVIEW

Front

What is the rule for rotating a figure 180 degrees?

Back

(-x, -y)

Front

What is a rigid transformation?

Back

A transformation that preserves size and shape.

Front

What is the rule for reflection across y = -1?

Back

Reflects points by inverting their y-coordinates relative to -1.

Front

Describe the translation represented by f(x, y) = (x - 2, y + 9).

Back

Moves the figure 2 units left and 9 units up.

Front

How do you reflect the point (3, 5) over the y-axis?

Back

The reflected point is (-3, 5).

Front

What is the effect of a translation on a figure?

Back

It shifts the figure without changing its shape or size.

Front

What happens to the coordinates of a point (x, y) when reflected over the x-axis?

Back

The new coordinates are (x, -y).

Front

What is the rule for reflecting a point over the line y = 1?

Back

The new y-coordinate is 2 - y.

Front

What is the definition of a transformation in geometry?

Back

A change in the position, size, or shape of a figure.

Front

What is the result of reflecting the point (-2, 3) over the y-axis?

Back

The reflected point is (2, 3).