12/16/2024 Sub Assignment

Front

What is a reflection in geometry?

Back

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

Front

What does it mean to rotate a figure in geometry?

Back

To rotate a figure means to turn it around a fixed point, called the center of rotation, by a certain angle.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves every point of a figure the same distance in the same direction.

Front

Define dilation in geometry.

Back

Dilation is a transformation that changes the size of a figure but not its shape, using a scale factor.

Front

What is the scale factor in dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during dilation.

Front

How do you reflect a point across the y-axis?

Back

To reflect a point (x, y) across the y-axis, change the sign of the x-coordinate to (-x, y).

Front

What is the result of rotating a point 90 degrees clockwise around the origin?

Back

The coordinates of a point (x, y) become (y, -x) after a 90-degree clockwise rotation.

Front

What is the effect of translating a point (x, y) up by 3 units?

Back

The new coordinates will be (x, y + 3).

Front

How do you perform a dilation with a scale factor of 2 on the point (3, 4)?

Back

The new coordinates will be (3*2, 4*2) = (6, 8).

Front

What is the difference between a rotation and a reflection?

Back

A rotation turns a figure around a point, while a reflection flips it over a line.