Quadratic Quiz

Factor.  $x^2+8x+7$  

•  $\left(x+7\right)\left(x+1\right)$  

•  $\left(x-1\right)\left(x-7\right)$  

•  $\left(x+8\right)\left(x+1\right)$  

•  $\left(x-8\right)\left(x-1\right)$  

Factor.

   $x^2-400$  

•  $\left(x+20\right)\left(x-20\right)$  

•  $\left(x-20\right)^2$  

•  $\left(x+20\right)^2$  

•  $\left(x-200\right)^2$  

Factor. 

 $2x^2-2x-40$  

•  $2\left(x-5\right)\left(x+4\right)$  

•  $\left(2x+5\right)\left(x-8\right)$  

•  $2\left(x+8\right)\left(x-5\right)$  

•  $\left(2x+10\right)\left(x-4\right)$  

What are the coordinates of the vertex?

• (2, 4)

• (0, 4)

• (0, -4)

• (-2, 4)

What is the vertex?

• (-2, -3)

• (-4, 0)

• (2, -3)

• (0, -1)

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)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the equation of this graph?

• f(x) = (x -5)² + 1
• f(x) = (x - 1)² - 5
• f(x) = (x + 1)² - 5
• f(x) = (x + 5)² +1

Tags

CCSS.HSF-IF.C.7A

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

What do we call the highest or lowest point of a quadratic?

• parabola
• vertex
• graph
• point

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the vertex?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

Tags

CCSS.HSF-IF.C.7A