3/2/21 DO NOW

If given the equation y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

Does the graph of this equation open up or down? 
f(x) = -(x + 3)² - 5

• up
• down

What is the vertex for f(x) = 4(x-2)² + 3?

• (-2, 3)

• (2,-3)

• (4,3)

• (2,3)

Which equation has a vertex of (-3, 4)?

• y = 2(x+3)² + 4
• y = (x+3)² - 4
• y = (x-3)² + 4
• y = 2(x - 3)² + 4

 $\sqrt{24}$  

•  $2\sqrt{6}$  

•  $6\sqrt{2}$  

•  $5$  

•  $\sqrt{12}\sqrt{2}$  

 $Simplify:\ \ \sqrt{144}$  Select all that apply.

•  $12$  

•  $\sqrt{12}$  

•  $2\sqrt{6}$  

•  $-12$  

 $Simplify:\ \ \sqrt{-72}$  

•  $3\sqrt{6}$  

•  $6\sqrt{2}$  

•  $2\sqrt{6}$  

• No real solution