Transformations in Geometry

Front

What is the algebraic representation for reflecting a figure over the x-axis?

Back

(x, y) → (x, -y)

Front

How many lines of symmetry does a hexagon have?

Back

6

Front

Rotate the point K (7, 8) around the origin 90° counterclockwise. What is the image of K'?

Back

K' (-8, 7)

Front

Which rule describes rotating a point 180° clockwise?

Back

(x, y) → (-x, -y)

Front

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

Back

x-coordinate

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape.

Front

What is the result of a translation of a point (3, 4) by (2, -1)?

Back

(5, 3)

Front

What is the algebraic representation for reflecting a figure over the y-axis?

Back

(x, y) → (-x, y)

Front

What is the effect of a dilation with a scale factor of 2 on a triangle with vertices at (1, 1), (2, 2), (3, 3)?

Back

(2, 2), (4, 4), (6, 6)

Front

What is the algebraic representation for rotating a point 90° clockwise?

Back

(x, y) → (y, -x)