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Pre-image point N (6,-3) was dilated to point N(2,-1) What was the scale factor used?

2 Answers

1 vote

Answer:

1/3

Step-by-step explanation:

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5 votes
Answer:
The scale factor is 1/3

Step-by-step explanation:
Given that the original point is has coordinates (x,y) and that the dilated point has coordinates (x',y'), we can see that:
x' = k * x
y' = k * y
where k is the scale factor

Now, for the given point we have:
original point = (6 , -3)
dilated point = (2 , -1)
Now, applying the above formula, we will find that:
For x-coordinate:
2 = k * 6
k = 2/6
k = 1/3
Check using the y-coordinate:
-1 = k * -3
k = -1 / -3
k = 1/3

From the above, we can confirm that:
k = 1/3

Hope this helps :)
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