Function Notation and Zeros

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