Must Do: Transformations

Front

What is a reflection in geometry?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you reflect a point over the y-axis?

Back

Change the sign of the x-coordinate of the point.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a translation in geometry?

Back

A transformation that slides a figure from one position to another without changing its shape or size.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the rule for translating a point (x, y) 2 units to the right and 3 units down?

Back

(x + 2, y - 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a dilation in geometry?

Back

A transformation that changes the size of a figure but not its shape.

Tags

CCSS.8.G.A.3

Front

True or False: A dilation produces a congruent figure.

Back

False. A dilation produces a similar figure, not congruent.

Tags

CCSS.8.G.A.3

Front

What does the notation (x + a, y + b) represent?

Back

A translation of a point (x, y) by 'a' units horizontally and 'b' units vertically.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point X(1, 2) is translated 3 units left and 4 units up, what is the new position of X'?

Back

(-2, 6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

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

Back

The new point will be (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What transformation is represented by (x, y) → (x - 1, y + 2)?

Back

A translation 1 unit left and 2 units up.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5