Acc7 Module 10 Flashcard Dilation and Scale Factors

Front

Similar figures have the same ______ but different ______.

Back

shape; sizes

Front

When A(3, 6) is under a dilation of 2 what are the coordinates of A'?

Back

(6, 12)

Front

How do you write the algebraic notation when the scale factor is 3?

Back

(x, y) goes to (3x, 3y)

Front

Definition: The figure after a transformation has occurred.

Back

Image

Front

How do you write the algebraic notation when the scale factor is 1/2?

Back

(x, y) goes to (1/2x, 1/2y)

Front

What is a scale factor?

Back

A number that scales, or multiplies, a quantity.

Front

What happens to the size of a figure when the scale factor is greater than 1?

Back

The figure enlarges.

Front

What happens to the size of a figure when the scale factor is less than 1?

Back

The figure shrinks.

Front

If the coordinates of a point are (x, y), what are the new coordinates after a dilation by a scale factor of k?

Back

(kx, ky)

Front

What is the pre-image in a transformation?

Back

The original figure before any transformation.