Function Notation Lesson

Function Notation

Youtube video link (copy and paste)

https://www.youtube.com/watch?v=Kj3Aqov52TY

How to Evaluate

• Given the function h

• Substitute 3, a domain value, on both sides of = for k

• Use order of operations (PEMDAS) to simplify

Multiple Choice

Evalute  $g\left(x\right)=x^2-3x+1$  , when  $x=-5$  

•  $-41$  

•  $-9$  

•  $41$  

•  $9$  

Poll

Do you know how to type a function into Desmos?

• $Yes$

• $No$

• $Somewhat$

Using Desmos given

 $f\left(x\right)=3x^2-5$  

• Type function into Desmos as just it looks

• Press sprocket icon (edit list)

• Choose the table icon (convet to table)

• A table of x and y values will appear below the function. 

Multiple Select

Identify all output value for the function

 $f\left(x\right)=\frac{\left(\ 2x+1\right)}{x}$  when the domain is  $\left\{1,2,3,4\right\}$  

• 3

•  $\frac{3}{2}$  

•  $\frac{7}{3}$  

•  $\frac{4}{3}$  

•  $2$  

Practice Document in Classwork

Copy the document that is in classwork, complete, then submit