Translations and Reflections

What is the line of reflection?

• The line over which a figure is reflected.

• A line that divides a shape into two equal parts.

• A line that represents the axis of rotation.

• A line that connects two points in a figure.

If point B(-1, 4) is translated 4 units left and 2 units down, what are the coordinates of B'?

• (-5, 2)

• (-3, 6)

• (3, 2)

• (-1, 2)

Translations, reflections and rotations are all known as ________________________.

• Transformations

• Translations

• Reflections

• Rotations

What transformation does this image show?

• rotation

• reflection

• dilation

• translation

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

• labeling a transformation

• defining a function

• calculating a derivative

• solving a system of equations

What transformation does this image represent?

• reflection over y-axis

• rotation around the origin

• translation along the x-axis

• dilation about the origin

What does a translation do to a figure on the coordinate plane?

• Rotates it

• Flips it

• Slides it

• Resizes it

Determine where T' would be if you translated 3 units to the right and 6 units up.

• (2, -5)

• (5, 1)

• (3, 6)

• (8, 7)

What is the coordinate plane?

• A two-dimensional surface formed by the intersection of a vertical line (y-axis) and a horizontal line (x-axis).

• A three-dimensional space defined by length, width, and height.

• A flat surface that extends infinitely in all directions without any boundaries.

• A system used to measure angles and distances in a circular format.

What is the effect of a reflection over the y-axis on point C(3, 2)?

• C'(-3, 2)

• C'(-3, -2)

• C'(3, -2)

• C'(3, 2)