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A triangle with vertices at A(20.-30), B(10, -15), and C(5,-20) has been dilated with a center of dilation at the origin. The image of
B, point B', has the coordinates (2, -3). What is the scale factor of the dilation?
10
5
10​

Respuesta :

sqdancefan

Answer:

  1/5

Step-by-step explanation:

The scale factor is the ratio of corresponding coordinates (when dilation is about the origin).

  Bx'/Bx = 2/10 = 1/5

  By'/By = -3/-15 = 1/5

The scale factor of the dilation is 1/5.

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