Dilations practice

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• $\left(\frac{-3}{n},\frac{-3}{n}\right)$

• (-3n, -5n)

• (-3 + n, -5 + n)

• (-3 - n, -5 - n)

Which transformation does not preserve congruence?

• Dilation

• Reflection

• Rotation

• Translation

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• A reflection across the x-axis

• A translation 7 units down

• A rotation of 180 degrees

• A dilation by a scale factor of 5

• (20x, 20y)

• (0.4x, 0.4y)

• (x + 20, y + 20)

• (x + 0.4, y + 0.4)

• (6 + u, -3 + u)

• $\left(\frac{6}{u},\ \frac{-3}{u}\right)$

• (6 + 1u, -3 + 1u)

• (6u, -3u)