Circle 1 is centered at (−4,−2) ( − 4 ,   − 2 ) and has a radius of 3 centimeters. Circle 2 is centered at (5,3) ( 5 ,   3 ) and has a radius of 6 centimeters. What transformations can be applied to Circle 1 to prove that the circles are similar? Enter your answers in the boxes.

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Answer:

Circle 2 was dilated by (x+9, y+5) and radius was dilated by a scale factor of 2.

Step-by-step explanation:

Circle 1 is centered at (-4, -2) and has a radius of 3 centimeters.

Circle 2 is centered at (5, 3) and has a radius of 6 centimeters.

If circle 2 is the transformation of circle 1.

Let x and y be the shifting of center (-4, -2) of circle 1.

Therefore, x + (-4) = 5 ⇒ x = 4+5 = 9

and x + (-2) = 3 ⇒ x = 3 + 2 = 5

This reveals (-4, -2) has been shifted by (9, 5)

Since radius of circle 1 is 3cm and radius of circle 2 is 6cm.

Therefore circle 1 has been dilated by a factor of 2 to form circle 2.

The translations that can be applied to make circles similar are,

1) Take a mirror image of (-4,-2) about y = -x line.

2) Move 1 unit right of x and then move 1 unit up.

3)Dilate the first circle by a factor of 2.

How to make circles similar?

We need to make the coordinates of the center as well as the length of radius the same.

Coordinates of circle 1≡ (-4,-2)

Coordinates of circle 2≡ (5,3)

Take a mirror image of (-4,-2) about y = -x line. Move 1 unit right of x and then move 1 unit up, dilate the first circle by a factor of 2.

(-4,-2)⇒(4,2)⇒(4+1,2)⇒(5,2)⇒(5,2+1)⇒(5,3)

Therefore, The translations that can be applied to make circles similar are,

1) Take a mirror image of (-4,-2) about y = -x line.

2) Move 1 unit right of x and then move 1 unit up.

3)Dilate the first circle by a factor of 2.

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