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Select all the transformation statements that the support the similarity of circles A and B

Select all the transformation statements that the support the similarity of circles-example-1
User Vdshb
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1 Answer

12 votes
12 votes

Answer

Option A is correct.

(x, y) → (x + 9, y - 2); D₃

Step-by-step explanation

When a coordinate A(x, y) is translated horizontally along the x-axis by a units, the new coordinates, A'(x', y') is represented as

A[(x + a), y] when the translation is by a units to the right.

A[(x - a), y] when the translation is by a units to the left.

When a coordinate A(x, y) is translated vertically along the y-axis by b units, the new coordinates, A'(x', y') is represented as

A' [x, (y + b)] when the translation is by b units upwards.

A [x, (y - b)] when the translation is by b units downwards.

We can see that the coordinates of the center of circle A (-5, 3) becomes the center of circle B (4, 1)

We can easily see that the center of A is moved 9 units to the right and 2 units downwards.

So, the first transformation is

(x, y) → (x + 9, y - 2)

Then, we can see that the radius of the circle A changes from 2 units to 6 units.

That means the circle B is circle dilated by a factor of 3.

So, the total transformation is

(x, y) → (x + 9, y - 2); D₃

Hope this Helps!!!

User Chords
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