Transformations in Geometry

Describe this transformation: (x - 1, y + 1)

• Translate 1 left, 1 up

• Translate 1 right, 1 up

• Translate 1 right, 1 down

• Translate 1 left, 1 down

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

(x, y) -> (1/4x, 1/4y)

• Enlargement, k=1/4

• Reduction, k= 1/4

• Enlargement, k=4

• Reduction, k= 4

Tags

CCSS.8.G.A.3

(x, y) -> (2x, 2y)

• Reduction, k= 2

• Enlargement, k= 2

• Reduction, k= 1/2

• Enlargement, k= 1/2

Tags

CCSS.8.G.A.3

If you triple the sides of a figure, the perimeter is...

• times 3

• times 6

• times 9

• times 81

Tags

CCSS.7.G.A.1

If a shape is being translated to the left, will its algebraic rule have addition or subtraction?

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for a reflection over the x-axis?

• (x, y) --> (-x, y)

• (x, y) --> (x, -y)

• (x, y) --> (-y, x)

• (x, y) --> (y, -x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Quadrilateral ABCD is reflected across the x-axis to create quadrilateral A'B'C'D'. Which algebraic rule describes this transformation?

• (x, y) --> (-y, x)

• (x, y) --> (-x, y)

• (x, y) --> (-x, -y)

• (x, y) --> (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If the triangle ABC is reflected across the y-axis to create a new image, which rule describes this transformation?

• (x, y) --> (-x, -y)

• (x, y) --> (-x, y)

• (x, y) --> (x, -y)

• (x, y) --> (-y,x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Does a translation left/right go with x or y?

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for a reflection over the y-axis?

• (x, y) --> (-y, x)

• (x, y) --> (x, -y)

• (x, y) --> (-x, -y)

• (x, y) --> (-x, y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5