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Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips or mirrors an object across a line.

Front

How do you translate a point in a coordinate plane?

Back

To translate a point, you move it a certain distance in the horizontal and vertical directions.

Front

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

Back

The y-coordinate of the point changes sign, while the x-coordinate remains the same.

Front

What is the rule for reflecting a point across the line x = 3?

Back

To reflect a point (x, y) across the line x = 3, the new x-coordinate will be 6 - x, while the y-coordinate remains the same.

Front

What is the mirror line in a reflection?

Back

The mirror line is the line across which the reflection occurs, where each point and its image are equidistant from the line.

Front

How do you identify the transformation from one shape to another?

Back

You analyze the changes in position, orientation, and size of the shape to determine the type of transformation.

Front

What is the difference between translation and reflection?

Back

Translation moves an object without changing its orientation, while reflection flips it over a line.

Front

What happens to the coordinates of a point when it is reflected across the y-axis?

Back

The x-coordinate changes sign, while the y-coordinate remains the same.

Front

What is the effect of reflecting a shape across the line y = x?

Back

The x and y coordinates of each point are swapped.

Front

How do you perform a translation of a point (x, y) by (a, b)?

Back

Add a to the x-coordinate and b to the y-coordinate: (x + a, y + b).