Geometry CP 4.1-4.2 Check-up

Front

What is a translation in geometry?

Back

A translation is a type of transformation that moves every point of a shape or object a certain distance in a specified direction.

Front

What is the rule for translating a point (x, y) by (a, b)?

Back

The rule is (x, y) -> (x + a, y + b).

Front

What is the image of point P(4, -3) after the translation (x-6, y+2)?

Back

P'(-2, -1) is the image after the translation.

Front

What happens to a point (a, b) when it is reflected in the x-axis?

Back

The image is (a, -b).

Front

What is the image of point Q(8, -6) after reflection in the x-axis?

Back

Q'(8, 6) is the image after the reflection.

Front

What happens to a point (a, b) when it is reflected in the y-axis?

Back

The image is (-a, b).

Front

What is the image of point L(-7, -8) after reflection in the y-axis?

Back

L'(7, -8) is the image after the reflection.

Front

What is a composition of transformations?

Back

A composition of transformations is applying two or more transformations to a shape or point in sequence.

Front

If a point is translated by (x+3, y-1) and then by (x-1, y-6), what is the final image of point (-2, 4)?

Back

The final image is (0, -3).

Front

What is the effect of translating a point by (0, 0)?

Back

The point remains unchanged.