8th grade transformations

Front

What is the term for a point after a transformation?

Back

Image

Front

What does reflecting a shape across the y-axis do to the x-coordinates?

Back

It changes the sign of the x-coordinates.

Front

What symbol is used to denote new vertices after a transformation?

Back

' (prime symbol)

Front

In which quadrant does a point with a negative x-coordinate and a negative y-coordinate lie?

Back

III

Front

What is the term for the original shape before a transformation?

Back

Pre-image

Front

What is a transformation that flips a shape over a line called?

Back

Reflection

Front

What is the result of translating a shape 3 units to the right and 2 units up?

Back

The new coordinates will be (x+3, y+2).

Front

What is the term for a transformation that enlarges or reduces a shape?

Back

Dilation

Front

What happens to the y-coordinates when reflecting a shape over the x-axis?

Back

The sign of the y-coordinates changes.

Front

What is the effect of a rotation of 90 degrees counterclockwise on the coordinates (x, y)?

Back

The new coordinates will be (-y, x).