Unit 3 Review

right 7, down 3

left 7, down 3

up 7, left 3

down 7, right 3

(-4,3)

(4,-3)

(10,7)

(10,3)

The angle measures of triangle P'R'S' are LESS THAN the corresponding angle measures of triangle PRS.

The angle measures of triangle P'R'S' are GREATER THAN the corresponding angle measures of triangle PRS.

The angle measures of triangle P'R'S' are EQUAL to the corresponding angle measures of triangle PRS.

The angle measures of triangle P'R'S' are LESS THAN OR EQUAL to the corresponding angle measures of triangle PRS.

The angle measures of triangle P'R'S' are GREATER THAN OR EQUAL to the corresponding angle measures of triangle PRS.

(-x,-y)

(x,-y)

(x,y)

(-x,y)

The drawing displays a reflection across the y-axis according to the rule (x,y)->(-x,y)

The drawing displays a reflection across the x-axis according to the rule (x,y)->(x,-y)

The drawing displays a reflection accross the y-axis according to the rule (x,y)->(x,-y)

The drawing displays a reflection across the x-axis according to the rule (x,y)->(-x,y)

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

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

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

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

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

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

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

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

90º rotation clockwise

Reflection across the x-axis

Reflection across the y-axis

270º rotation clockwise

$$\frac{New}{Old}$$  

$$\frac{Old}{New}$$  

$$\frac{preimage}{image}$$  

$$\frac{preimage}{original}$$  

The area of circle B' would be 5 times the original area.

The area of circle B' would be 1/25 times the original area.

The area of circle B' would be 1/5 times the original area.

The area of circle B' would be 25 times the original area.

The perimeter of the image is the same size as the perimeter of the pre-image.

The perimeter of the image is 9 times larger than the perimeter of the pre-image.

The perimeter of the image is 18 times larger than the perimeter of the pre-image.

The perimeter of the image is 81 times larger than the perimeter of the pre-image.

(x,y)--->(x+4,y+4)

(x,y)--->(2.5x,2.5y)

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

(x,y)--->(2/5x,2/5y)

$$\frac{AB}{CD}=\frac{HJ}{FG}$$  

$$\frac{CD}{HJ}=\frac{DE}{FG}$$  

$$\frac{BC}{GH}=\frac{JK}{DE}$$  

$$\frac{GH}{BC}=\frac{HJ}{CD}$$  

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

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

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

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

(10x, 10y)

(0.6x, 0.6y)

(x+10, y+10)

(x+0.6, y+0.6)

$$\frac{4}{y}=\frac{2.74}{4.5}$$  

$$\frac{3.27}{x}=\frac{4.5}{2.74}$$  

$$\frac{4}{4.5}=\frac{2.74}{y}$$  

$$\frac{3.27}{x}=\frac{2.74}{4.5}$$