IP--Transformations

Front

What is the algebraic notation for translating a point (x, y) 9 units right and 3 units down?

Back

(x, y) -> (x + 9, y - 3)

Front

What is the term for flipping a figure over a line?

Back

Reflection

Front

What is the angle of rotation for a figure that has been rotated from its original position to a new position in a clockwise direction?

Back

90 degrees clockwise

Front

What type of transformation involves turning a figure around a fixed point?

Back

Rotation

Front

If point B(2,3) is reflected across the x-axis, what are the coordinates of B'?

Back

B'(2, -3)

Front

What is the general formula for reflecting a point (x, y) across the x-axis?

Back

(x, y) -> (x, -y)

Front

What is the general formula for reflecting a point (x, y) across the y-axis?

Back

(x, y) -> (-x, y)

Front

What is the general formula for translating a point (x, y) by a vector (a, b)?

Back

(x, y) -> (x + a, y + b)

Front

What is the term for a transformation that preserves the shape and size of a figure?

Back

Isometry

Front

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

Back

(x, y) -> (-x, -y)