Warm up Th 11/14/2024 dilation

Front

What are the coordinates of the vertices of a triangle with vertices (2,0), (3,-1), and (-2,-5) after dilation by a scale factor of 3 with the origin as the center of dilation?

Back

(6,0), (9,-3), (-6,-15)

Front

Define Dilation in geometry.

Back

Dilation means to enlarge or reduce a figure.

Front

What are the coordinates of the vertices W(-2,4) and X(1,4) after a dilation with a scale factor of 2?

Back

W'(-4,8), X'(2,8)

Front

What does a scale factor of less than one indicate in dilation?

Back

It indicates that the image will be a reduction of the pre-image.

Front

Does the image show a Dilation?

Back

Yes.

Front

What is the formula for finding the coordinates of a point (x,y) after dilation with a scale factor k?

Back

The new coordinates are (kx, ky).

Front

If a triangle is dilated by a scale factor of 1, what happens to its size?

Back

The triangle remains the same size; it is unchanged.

Front

What is the effect of a scale factor greater than 1 on a figure during dilation?

Back

The figure is enlarged.

Front

How do you determine the center of dilation?

Back

The center of dilation is the point from which the figure is enlarged or reduced.

Front

What happens to the angles of a figure during dilation?

Back

The angles remain the same; only the size of the figure changes.