Finding the axis of symmetry and the vertex

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Tags

CCSS.HSA.CED.A.1

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

Tags

CCSS.HSF-IF.C.7A

What is the "formula" for finding the axis of symmetry? 

•  $y=ax^2+bx+c$  

•  $x=\frac{-b}{2a}$  

•  $y=mx+b$  

•  $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$  

Tags

CCSS.HSA.REI.D.10

What is a, b, and c in y = 3x² - 5x + 4

• a = 3, b = -5, c = 4

• a = 3, b = 5, c = 4

• a = 3, b = 5, c = -4

• a = 3, b = -5, c = -4

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

Find the axis of symmetry for  $y=x^2-8x+15$  

• x = -4

• x = 4

• y = 4

• y = -4

Tags

CCSS.HSA.REI.B.4

Find the axis of symmetry of
 $y=3x^2-6x+4$  

•  $x=1$ 

•  $x=-6$  

•  $x=2$ 

•  $x=-1$  

Tags

CCSS.HSA.REI.B.4

Find the axis of symmetry for  $y=-x^2-4x+12$  

•  $x=-4$  

•   $x=-2$  

•  $x=4$  

•  $x=2$  

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

The equation for the line of symmetry is:

• y = 2

• x = 2

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

What is the vertex?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

Tags

CCSS.HSF-IF.C.7A

The vertex of this quadratic is...

• (1,16)
• (-3,0)
• (5,0)
• (0,15)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7