1. 9-2 Translations
Rigor – Given a geometric figure, students will translate the figure using graph paper and will represent the translation using function notation or vector notation
Relevance – Transformations are used to describe movement

2. Vectors:
Questions: How is a vector different from a line segment? From a ray?
Highlight definition and notation on pg 377 of the workbook
Example 1 pg 377

3. Translation (slide) Highlight definition on pg 378 of the workbook
Translation notation:
Coordinate notation: (x, y)  (x + a, y + b)
Vector notation: 𝑇 𝑎,𝑏 (𝑝𝑟𝑒−𝑖𝑚𝑎𝑔𝑒)
Read “translate figure left/right a units and up/down b units”

4. Complete example 3 on pg 379 of the workbook You will not be responsible for constructing a translation this unit!

5. EX: Coordinates
𝐴) ∆𝑆𝑈M has coordinates S(-2, 5), U(1, 6), and M(0, -3). What are the coordinates of ∆ 𝑆 ′ 𝑈 ′ 𝑀′ after 𝑇 −4, 8 (∆𝑆𝑈𝑀)? B) Point A(12, 7) has the image A’(3, 10). Write the rule for the translation.

6. EX: Chess
A) What are the vectors that describe each move of the black bishop? B) Where is the bishop in relation to its original position? Write your answer as a vector.

7. EX: Marching Band
In marching band, it takes 8 standard steps to march 5 yards. From the center of the field, Chris starts the show 8 steps to the left and 8 steps away from the home side. He marches 16 steps to the right and then 24 steps towards the home side to his next position. What vector represents Chris’s movement in yards? If the center of the field is the origin, what is Chris’s final position from the center of the field?

8. Honors Class Only Example
A boat is traveling due South with a speed of knots. A current heading East is pressing against the boat at 5.21 knots. What is the boat’s actual speed?

9. 9-2 Standard Assignments
Primary Assignment: join.quizizz.com
Codes: (Due 7am)
Period 1:
Period 3:
Period 7:
Secondary Assignment:
Workbook pg 381 #1-4, 7-11; pg 382 ALL

10. Primary Assignment: join.quizizz.com
9-2 Honors Assignments
Primary Assignment: join.quizizz.com
Codes: (Due 7am)
Period 2:
Period 4:
Period 6:
Secondary Assignment:
Workbook pg 381 #7-11; pg 382 ALL