Final Ch. 4

Question 1

Translation (x,y):

Answer 1

(y+a,x+b)

Question 2

Rotation of 90:

Answer 2

(-y,x)

Question 3

Rotation of 180:

Answer 3

(-x,-y)

Question 4

Rotation of 270:

Answer 4

(y,-x)

Question 5

Reflection over y axis:

Answer 5

(-x,y)

Question 6

Reflection over x axis:

Answer 6

(x,-y)

Question 7

Reflection over y = x:

Answer 7

(y,x)

Question 8

Reflection over y= -x:

Answer 8

(-y,-x)

Question 9

Dilation by scale factor k:

Answer 9

(kx,ky)

Question 10

Similarity:
1. Congruent ______.
2. Proportional sides ratios or corresponding sides are the _____.

Answer 10

Angles
Same

Question 11

Symmetry:
1. Rotational symmetry:
2. Line symmetry:

Answer 11

1. Turn the shape until it lands exactly on itself
2. Fold in half. Both sides are exactly the same.