Quadratic Equations Review 11/30

How confident are you with the current unit: Quadratic Equations?

• Not confident at all

• Somewhat confident

• Confident

• Very confident!

Tags

CCSS.HSA-REI.B.4B

What should be the next step in solving $x^2-5x+6=0$ by factoring? 

•  $\left(x-6\right)\left(x+1\right)=0$  

•  $\left(x-6\right)\left(x-1\right)=0$  

•  $\left(x-3\right)\left(x-2\right)=0$  

• Answer is not in the choices.

Tags

CCSS.HSA-REI.B.4B

To solve $x^2-8x=0$ by completing the square, we use _________.

•  $x^2-8x+16=0$  

•  $x^2-8x+16=16$  

•  $x^2-8x+16=-16$  

• Answer is not in the choices.

Tags

CCSS.HSA-REI.B.4B

What are the x-intercepts of the quadratic?

• (2, 0) and (4, 0)

• (-2, 0) and (-5, 0)

• (2, 0) and (5, 0)

• (-2, 0) and (-4, 0)

Tags

CCSS.HSF-IF.C.7A

Which quadratic equation models the parabola shown?

• y = (x-2)(x-5)

• y = (x+2)(x+5)

• y = -(x+2)(x+5)

• y = -(x-2)(x-5)

Tags

CCSS.HSF-IF.C.7A

What are the x-intercepts:

(x - 3)(x + 6) = 0

• { -3, -6 }

• { 3, -6 }

• { -3, -6 }

• { 3, 6 }

Tags

CCSS.HSA-REI.B.4B

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Tags

CCSS.HSF-IF.C.7A

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3