The center of dilation is (0,0) and the scale factor is 7. If A(3,4), then which is the distance between A and A'.

A. 5
B. 7
C. 30 <<<<
D. 35

6 answers

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30
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1.A,D
2.B
3.B
4.B
5.A
6.D
7.C
8.A
9.D
10.C,F
Number one answers are a and c not a and d
1. The dilation is an enlargement, the dilation has a scale factor of 3
2. (3/4,-9/4)
3. x=-10 and y=2.5
4. 1.2 cm
5. -1/8
6. 30 units
7. 12 cm
8. X'(-7.5,3.5) and Y'(-2.5,-5.5)
9. For a dilation, corresponding angles of the image and preimage are congruent. A dilation with a scale factor is an enlargement.
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