Math 8 : Transformations Review

Front

What is the mathematical term for the line that you reflect a shape over?

Back

Line of reflection

Front

Under a dilation, which scale factor will result in a congruent image?

Back

1

Front

Back

Front

What is the image of the point (-3,-4) when rotated around the origin 180 degrees?

Back

(3,4)

Front

What is a dilation in geometry?

Back

A transformation that can be either an enlargement or a reduction.

Front

What is the effect of a scale factor greater than 1 in a dilation?

Back

It results in an enlargement of the figure.

Front

What is the effect of a scale factor between 0 and 1 in a dilation?

Back

It results in a reduction of the figure.

Front

What does it mean for two figures to be congruent?

Back

They have the same shape and size, but may be in different positions.

Front

What is the result of reflecting a point across the x-axis?

Back

The y-coordinate changes sign.

Front

What is the result of reflecting a point across the y-axis?

Back

The x-coordinate changes sign.