Translations, Reflections, & Rotations

Front

What does a translation do to an image?

Back

Slides it

Front

Identify the transformation from ABC to A'B'C'.

Back

Reflection across the x-axis

Front

If ∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7) and is reflected across the y-axis, what will S' be?

Back

S'(-3, 7)

Front

Translate the point A (-3, 4) right 5 and up 1. What is the new position?

Back

(2, 5)

Front

Determine where X' would be if you translated X 3 units to the left and 9 units down.

Back

(-4, -5)

Front

What is a reflection in geometry?

Back

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

Front

What is a rotation in geometry?

Back

A transformation that turns a figure around a fixed point at a certain angle.

Front

What is the effect of a 90° clockwise rotation on the point (x, y)?

Back

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

Front

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

Back

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

Front

What is the rule for translating a point (x, y) right 'a' units and up 'b' units?

Back

(x + a, y + b)