24-25 Geometry CP 4.1-4.2 Check-up

Front

What is the rule for reflecting a point (x, y) in the y-axis?

Back

The rule is: (x, y) → (-x, y)

Front

What is the image of L(7, 8) after a reflection in the y-axis?

Back

L'(-7, 8)

Front

What is the rule for reflecting a point (x, y) in the x-axis?

Back

The rule is: (x, y) → (x, -y)

Front

What is the image of Q(8, -6) after a reflection in the x-axis?

Back

Q'(8, 6)

Front

How many lines of symmetry does a regular pentagon have?

Back

A regular pentagon has 5 lines of symmetry.

Front

What is the image of P(4, -3) after the translation (x, y) → (x, y + 2)?

Back

P'(4, -1)

Front

What is the rule for translating a point (x, y) by (6, -3)?

Back

The rule is: (x, y) → (x + 6, y - 3)

Front

What is the image of a point (3, 4) after a translation of (3, -2)?

Back

The image is (6, 2).

Front

What is the definition of symmetry in geometry?

Back

Symmetry in geometry refers to a balance or correspondence between two halves of a shape.

Front

What is the image of a point (x, y) after a reflection in the line y = x?

Back

The image is (y, x).