Unit 2B Midterm Review

Front

What is a translation in geometry?

Back

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

Front

What does the transformation (x, y) → (x + a, y) represent?

Back

This transformation represents a translation to the right by 'a' units.

Front

What are the coordinates of triangle JRB after the transformation T_{2, -1} o r_y-axis?

Back

The coordinates are (1, -3), (5, 5), (-2, 4).

Front

What is the effect of translating (x, y + 6)?

Back

The image will move 6 units up.

Front

What does the transformation (x, y) → (x, -y) represent?

Back

This transformation represents a reflection across the x-axis.

Front

What is the result of applying R₉₀ o R₁₈₀ to the point P(2, -3)?

Back

The result is (-3, -2).

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 R₉₀ mean in transformations?

Back

R₉₀ refers to a 90-degree rotation of a point or figure around a specified point.

Front

What is the difference between a translation and a rotation?

Back

A translation moves a figure without changing its orientation, while a rotation turns a figure around a point.

Front

What is the transformation T_{2, -1}?

Back

T_{2, -1} is a translation that moves a figure 2 units to the right and 1 unit down.