R/M_Flashcard #2 Part 1 - Lesson 3.3 and 3.4 (Transformations)

Front

What does the transformation rule T(x, y) = (x + 2, y - 3) represent?

Back

Translate right 2 units, down 3 units.

Front

How is trapezoid ABCD translated to trapezoid A'B'C'D'?

Back

Translated 8 units down and 5 units to the right.

Front

What are the new coordinates of point X if its original coordinates are (2, 5) after a 90-degree clockwise rotation about the origin?

Back

(5, -2)

Front

What is the angle of rotation that maps the preimage to the image if it is 180 degrees?

Back

180 degrees.

Front

What is the scale factor if figure DMPN is dilated to form figure D'M'P'N with the center of dilation at the origin?

Back

2.

Front

Define translation in geometry.

Back

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

Front

What is a rotation in geometry?

Back

A transformation that turns a figure about a fixed point called the center of rotation.

Front

What is dilation in geometry?

Back

A transformation that alters the size of a figure but not its shape, using a scale factor.

Front

What is the center of dilation?

Back

The fixed point in a dilation transformation from which all points are expanded or contracted.

Front

How do you determine the scale factor in a dilation?

Back

Divide the length of a side of the image by the length of the corresponding side of the preimage.