NAME DATE PERIOD Lesson 3 Homework Practice

NAME _____________________________________________ DATE __________________ PERIOD _________

Lesson 3 Homework Practice

Rotations

For Exercises 1 and 2, graph quadrilateral EFGH and its image after each rotation. Then give the coordinates of the vertices for quadrilateral E F G H .

1. 90? clockwise about vertex H

yF

E

G

E

H

O

x E'(3, 1), F'(4,-1), G'(3, -3), H'(0, 0)

H

F

G

2. 180? counterclockwise about vertex E

H

y

G

E

F G

E F

E'(-1, 3), F'(-3, 2), G'(-5, 3), H'(-2, 6)

OH

x

3. Triangle RST has vertices R(1, 1), S(1, 4), and T(3, 1). Graph the figure and its rotated image after a clockwise rotation of 180? about the origin. Then give the coordinates of the vertices for triangle R'S'T'.

R'(-1, -1), S'(-1, -4), and T'(-3, -1)

4. Quadrilateral KLMN has vertices K(2, 0), L(4, 0), M(5, -2), and N(1, -2). Graph the figure and its rotated image after a counterclockwise rotation of 90? about the origin. Then give the coordinates of the vertices for quadrilateral K'L'M'N'.

K'(0, 2), L'(0, 4), M'(2, 5), and N'(2, 1)

yS

RT

T RO

x

S

yM L

K

N

KL

O

x

N

M

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Course 3 ? Chapter 6 Transformations

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