Transformation

translate three to the right and 4 down

(x,y)?(x+3,y-4)

reflection over the x-axis

(x,y)?(x,-y)

180? rotation

(x,y)?(-x,-y)

reflection over the y-axis

(x,y)?(-x,y)

90? rotation

(x,y)?(-y,x)

270? rotation

(x,y)?(y,-x)

increases the x-values

Sliding figure to the right...

decreases the x-values

Sliding figure to the left...

increases the y-values

Sliding figure up...

decreases the y-values

Sliding figure down...

translation

When we slide an object it is called

rotation

When we turn an object it is called

reflection

When we flip an object it is called

congruency

corresponding sides and angles are equal

counterclockwise

Direction that we rotate an image

(-5,4)

When (4,5) is rotated 90?, what is the new coordinate point?

(-4,-5)

When (4,5) is rotated 180?, what is the new coordinate point?

(5,-4)

When (4,5) is rotated 270?, what is the new coordinate point?

(-4,5)

When (4,5) is reflected across the y-axis, what is the new coordinate point?

(4,-5)

When (4,5) is reflected across the x-axis, what is the new coordinate point?

Rotating 270? counter-clockwise

Rotating 90? clockwise is the same as...

Rotating 90? counter-clockwise

Rotating 270? clockwise is the same as...

Rotating 180? counter-clockwise

Rotating 180? clockwise is the same as...

Supplementary angles

complementary angles

6

What is the length of line segment AB?

Dilation

What does not keep congruence?

Multiplication

What operation is used when dilating an image?

proportional

Corresponding sides are ____________ with similar figures

12

What is the length of line segment EF?

10

What is the length of line segment EG?

30

What is the length of line segment HJ?

160

If the dimensions of a rectangle with an area of 40 square inches are doubled, what will be the area in square inches of the new rectangle?

240

If the dimensions of a rectangle with a perimeter of 120 inches are doubled, what will be the perimeter in inches of the new rectangle?

Area x Scale Factor x Scale Factor

What is the formula to find the new area of a shape when it is dilated?

Perimeter x Scale Factor

What is the formula to find the new perimeter of a shape when it is dilated?