Multiply the distance of each coordinate from the center by the scale factor to get the new position:
new_coord = center_coord + (old_coord - center_coord) x scale_factor.
The x and y coordinates are worked out separately; for (1, -2), center (0, 0), scale factor 2.5:
new_x = 0 + (1 - 0) x 2.5 = 2.5
new_y = 0 + (-2 - 0) x 2.5 = -5
→ P (1, -2) goes to (2.5, -5) under the transformation.
The image is the point (2.5, -5).
0.5
A diliation is a reduction if the scale factor is: less than 1.
greater then 1
1/31/31/31/3
The answer is 0.5
If the original point was (-4, 12) then the image is (-16, 48).
Negative
Center and Scale Factor....
It is (2.5x, 2.5y) where P =(x,y).
It is (2.5x, 2.5y) where P =(x,y).
None. The vertices, the scale factor as well as the centre of dilation can each be defined independently of the other two. Each different combination will result in a different image.
With a scale factor of 1, the image is exactly the same size as the original object.
Image over preimage(original)
The image is a similar shape to that of the original.
The scale factor is the ratio of any side of the image and the corresponding side of the original figure.
A scale factor of one means that there is no change in size.
It is the letter F which is 10 times as large and, depending on where the original was, it may be translated.