1. Warm Up Solve: −𝟔+ 𝟑 𝒙 =−𝟖 Solve: 𝟐 𝟓 𝒙− 𝟑 𝟏𝟎 = 𝒙+𝟏 𝟓 −𝟏
I can determine a function from a table
Warm Up
Solve: −𝟔+ 𝟑 𝒙 =−𝟖
Solve: 𝟐 𝟓 𝒙− 𝟑 𝟏𝟎 = 𝒙+𝟏 𝟓 −𝟏
Solve for y: 𝟐−𝟒 𝒙+𝟑𝒚 =𝟏𝟎𝒙−𝟓𝒚
Solve for y: 𝟑− 𝟐𝒚+𝟏 𝟒 =𝒙

2. Warm Up
Solve: −𝟔+ 𝟑 𝒙 =−𝟖

3. Warm Up
Solve: 𝟐 𝟓 𝒙− 𝟑 𝟏𝟎 = 𝒙+𝟏 𝟓 −𝟏

4. Warm Up
Solve for y: 𝟐−𝟒 𝒙+𝟑𝒚 =𝟏𝟎𝒙−𝟓𝒚

5. Warm Up
Solve for y: 𝟑− 𝟐𝒚+𝟏 𝟒 =𝒙

6. When I triple my number and add four I get 10
Guess My Number
When I triple my number and add four I get 10

7. When I double my number, add four and then divide by two I get 5.
Guess My Number
When I double my number, add four and then divide by two I get 5.

8. Guess My Number
When I square my number, add three, divide by two and add one, I get 7.

9. Guess My Number
When I double my number, subtract six, take the square root and add four, I get 8.

10. The Silent Game

11. 1
What’s the Function? x 1 2 3 4 5 6 y 8 22
Function:
Y = 7x - 6

12. 2
What’s the Function? x 1 2 3 4 5 6 y -6 -7
Function:
Y = -1/2x -4

13. 3
What’s the Function? x 1 2 3 4 5 6 y 1 9 36
Function:
Y=x^2

14. 4
What’s the Function? x 1 2 3 4 5 6 y -3 1 13
Function:
Y = x^2-3

15. 5
What’s the Function? x 1 2 3 4 5 6 y 1 2 3
Function:
Y = x^(1/2)+1

16. Function Notation – A Quick Review
𝑓(𝑥) is pronounced “f of x”
The x is in “input” for the function
𝑓(𝑥) is the output
Example: 𝑓 𝑥 =7𝑥−6
𝑓 2 means input 2 for x
𝑓 2 =7 2 −6
𝑓 2 =14−6
𝑓 2 =8

17. Function Notation – A Quick Review
Any value can be input into a function, even other functions
Example: if 𝑔 𝑥 =3𝑥−2
𝑔 𝑝+1 =3 𝑝+1 −2
𝑔 𝑝+1 =3𝑝+3−2
𝑔 𝑝+1 =3𝑝+1

18. Function Notation Practice
20 minutes
Check your answers on the back table

19. Homework
Textbook