Unit 3 Lesson 3 – Dilations on the Coordinate Plane.
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Unit 3 Lesson 3 – Dilations on the Coordinate Plane
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Page 12 They are well scaled dilations - scale factor 2. They are the same shape and size. A Translation
Transcript of Unit 3 Lesson 3 – Dilations on the Coordinate Plane.
Unit 3Lesson 3 – Dilations on the Coordinate Plane
Page 12
C
A
B
C”
A B
Page 12
They are well scaled dilations - scale factor 2. They are the same shape and size.
A Translation
Page 13
Reflection Rotation Translation
Page 13
Yes, they change the size of a figure.
No, they change the size of a figure and rigid motions only change the position of the figure.
Page 14
All angle measure is preserved but the sides are three times larger.
All angle measure is preserved but the sides are smaller by half.
The figure is unchanged.
Multiplication
Page 14
(𝑘𝑥 ,𝑘𝑦 )
(4, -8)
(3, 5)
(2x2, -4X2)=
(9x, 15X)=
(-4, 6)(-16, 24)x
Scale factor of 4
(-4, 6)(-10, 15) Scale factor of X
Page 15
.𝑁
.𝐴.𝑃
N(2, 8)
A(-6, 0)
P(4, -2)
A’(-3, 0)
P’(2, -1)
N’(1, 4)
𝐷𝑜 , 12
.𝐴 ′.𝑁 ′
. P
Page 16
.𝐵 .𝐴
.𝐶
A(1, 3)
B(-2, 2)
C(0, -2)
B’(1, 0)
C’(3, -4)
A’(4, 1)
𝐷𝑜 ,2𝑇 3 ,− 2
A”(8, 2)
B”(2, 0)
C”(6, -8).𝐵 ′
.𝐴 ′
.𝐶 ′
.𝐵.𝐴
.𝐶
Homework
•Page 17 - ALL
