Transformations Review

Front

What is the result of a rotation of 180 degrees for the point (x, y)?

Back

(-x, -y)

Front

What is the function rule for reflecting a point over the x-axis?

Back

(x, -y)

Front

How do you rotate the point (6, 5) 90 degrees clockwise?

Back

(5, -6)

Front

What is the scale factor in a dilation that enlarges a shape by 3 times?

Back

3

Front

What is the sequence of transformations when reflecting over the y-axis and then the x-axis?

Back

Reflect over the y-axis then reflect over the x-axis.

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way.

Front

What are the four main types of transformations?

Back

Translation, rotation, reflection, and dilation.

Front

What is the effect of a translation on a point (x, y)?

Back

A translation moves the point to (x + a, y + b) where a and b are the horizontal and vertical shifts.

Front

What happens to the coordinates of a point when it is reflected over the y-axis?

Back

The x-coordinate changes sign: (x, y) becomes (-x, y).

Front

What is the effect of a dilation with a scale factor less than 1?

Back

The shape is reduced in size.