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16. Before a dilation, Point A has coordinates of
(9, 12). After the dilation, A' has coordinate of (6,
8). What was the scale factor of the dilation?
B
☑
A. 1
B. 2/3
A
C. 1/3 D. 114
C
0

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rvkacademic

Answer:

B. 2/3

Step-by-step explanation:

If the dilation is by a scale factor of s then the coordinates of the point (x, y) become (x',y') with x' = s · x  and y' = y · x

So scale factor s = x'/x = y'/y

Here we are given (x, y) = (9, 12) and (x', y') = (6, 8)

s = 6/9 = 8/12 = 2/3

Answer: 2/3

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