WarmUp 4/26&27

 $\sqrt{80}$  

Simplify

•  $16\sqrt{5}$  

•  $4\sqrt{5}$  

•  $5\sqrt{4}$  

•  $8\sqrt{10}$  

•  $2\sqrt{20}$  

Simplify
 $\sqrt{135}$  

•  $3\sqrt{15}$  

•  $9\sqrt{5}$  

• Can't be simplified further

•  $5\sqrt{27}$  

•  $9\sqrt{15}$  

Simplify $\sqrt{288}$  

•  $9\sqrt{32}$  

• Can't be simplified further

•  $2\sqrt{72}$  

•  $12\sqrt{2}$  

•  $18\sqrt{3}$  

Simplify $\sqrt{130}$  

•  $13\sqrt{10}$  

•  $2\sqrt{65}$  

•  $10\sqrt{13}$  

• Can't be simplified further

•  $5\sqrt{26}$  

Simplify  $\sqrt{-25}$  

•  $5$  

•  $-5$  

• No real solutions

•  $625$  

Simplify  $\sqrt{25}$ 

• $5$

• $-5$

• No real solutions

• $625$

Simplify  $-\sqrt{25}$ 

• $5$

• $-5$

• No real solutions

• $625$

What is the domain of the function?

• $0\le h\le80$

• $-\infty<t<\infty$
  

• $0\le t\le4.5$
  

• $0<t<4.5$

What is the range of the function?

•  $0\le h\le80$ 

•  $-\infty<h<\infty$ 
  

•  $2.25<h<80$ 
  

•  $h>4.5$ 

This is the graph of $y=-x^2-4x$ .  Use the graph to predict the solutions when  $-x^2-4x=0$   

•  $x=-2,\ 4$  

•  $x=-4,\ 0$  
  

•  $x=-4,\ 4$  

• no real solutions