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

Warm Up Solve: −𝟔+ 𝟑 𝒙 =−𝟖

Warm Up Solve: 𝟐 𝟓 𝒙− 𝟑 𝟏𝟎 = 𝒙+𝟏 𝟓 −𝟏

Warm Up Solve for y: 𝟐−𝟒 𝒙+𝟑𝒚 =𝟏𝟎𝒙−𝟓𝒚

Warm Up Solve for y: 𝟑− 𝟐𝒚+𝟏 𝟒 =𝒙

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

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.

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

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

The Silent Game

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

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

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

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

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

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

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

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

Homework Textbook