What do you notice?

What do you wonder?

(See Photo)

Reorder the following.

• evaluate

• functions

• using

• I can

• function notation.

Match the following.

• I can interpret statements...

• Proficient

• I can evaluate functions...

• Advanced

• I can graph functions...

• Developing

I can ________ _________ using function notation.

Focus Question

Why is it helpful to use f and g to describe some functions instead of using y?

You learned that a ​ (a)   can be written in the form ​ (b)   . By naming a linear function ​ (c)   , you can also write the function using ​ (d)   .

• linear function
• function notation

​ (a)   ​ (b)  

The notation ​ (c)   . If f is a function, and x is in its domain, then ​ (d)   corresponding to the input of x. You can use letters other than f to name a function, ​ (e)   .

• Function notation
• such as g or h

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Given f(x) = x² + 3x + 1, find f(-4).

Given f(x) = 16 - (x + 19)², find f(-14).