Test - Reflections, Translations, Rotations (shorter)

Front

What is the mathematical term for the mirror that you reflect a shape over?

Back

line of reflection

Front

What is another name for a slide in geometry?

Back

translation

Front

Given the point C(6,-1), find C' using the reflection over the line y=x.

Back

C' = (-1, 6)

Front

Translate the point (-9, 3) using the arrow rule (x, y) → (x-2, y+6). What is the new point?

Back

(-11, 9)

Front

What is the arrow rule for the rigid motion of the blue figure mapped to the green figure?

Back

(x, y) → (x+5, y+1)

Front

Define 'reflection' in geometry.

Back

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

Front

What is 'translation' in geometry?

Back

A transformation that slides a figure from one position to another without turning it.

Front

What does 'rotation' mean in geometry?

Back

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

Front

What is the line of symmetry?

Back

A line that divides a figure into two mirror-image halves.

Front

How do you find the image of a point after a reflection over the x-axis?

Back

Change the sign of the y-coordinate.