Given the point and it''s image, determine the scale factor. a (3, 6) a'' (4.5, 9) g'' (3, 6) g (1.5, 3) b (2, 5) b'' (1, 2.5).

Put the value of the letters with " over the original
So for A we have 3 in the front and 4.5 for A"
4.5/3 = 1.5
We can check if this is actually the scale factor but using the other numbers
The second numbers for A and A" are 6 and 9
6 * 1.5 = 9
So for point A it is 1.5
Use the same thing for G. That gives you 2
For B, you get 0.5
So the scale factors are 1.5, 2, and 0.5

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