Math 8 Unit 1: Translations, Reflections, & Rotations

Front

Reflecting over the y-axis changes the ____-_____________.

Back

x-coordinate

Front

Write a rule for the translation: (x, y) moves to (x +2, y - 1).

Back

(x +2, y - 1)

Front

What type of transformation is a rotation?

Back

Rotation (turn)

Front

What type of transformation is a translation?

Back

Translation (slide)

Front

What type of transformation is a reflection?

Back

Reflection (flip)

Front

If a point (3, 4) is reflected over the y-axis, what are the new coordinates?

Back

(-3, 4)

Front

If a point (2, -5) is translated using the rule (x -1, y + 3), what are the new coordinates?

Back

(1, -2)

Front

What is the effect of a 90-degree rotation counterclockwise on the point (x, y)?

Back

(-y, x)

Front

What is the effect of a 180-degree rotation on the point (x, y)?

Back

(-x, -y)

Front

What is the effect of a reflection over the x-axis on the point (x, y)?

Back

(x, -y)