Warm up T.11/12 Unit 4 pre-assessement

Front

What is the definition of enlargement in geometric transformations?

Back

Enlargement is a transformation that increases the size of a geometric figure while maintaining its shape.

Front

What is the definition of reduction in geometric transformations?

Back

Reduction is a transformation that decreases the size of a geometric figure while maintaining its shape.

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a geometric figure over a line, creating a mirror image.

Front

What is the purpose of a scale factor in dilation?

Back

The scale factor determines how much larger or smaller the image will be compared to the pre-image.

Front

What is the definition of dilation in geometric transformations?

Back

Dilation is a transformation that alters the size of a geometric figure by a scale factor, either enlarging or reducing it.

Front

What does translation mean in geometry?

Back

Translation is a transformation that moves a geometric figure from one location to another without changing its shape or orientation.

Front

How do you determine if a transformation is an enlargement or a reduction?

Back

If the scale factor is greater than 1, it is an enlargement; if it is less than 1, it is a reduction.

Front

What are the axes of reflection in geometry?

Back

The axes of reflection can be the x-axis, y-axis, or any line in the coordinate plane.

Front

What is the relationship between pre-image and image in transformations?

Back

The pre-image is the original figure before transformation, and the image is the resulting figure after transformation.

Front

What is the formula for calculating the scale factor in dilation?

Back

The scale factor is calculated by dividing the length of a side of the image by the length of the corresponding side of the pre-image.