Graphing Parabolas

For the equation y = ax² + bx + c, what is used to solve for the x-coordinate of the vertex?

• -a

• -b/a

• b/2a

• -b/2a

What is the vertex of y = x² + 4x + 3?

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

Tags

CCSS.HSG.GPE.A.2

A parabola has a vertex at (-3,2).

Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Tags

CCSS.HSF-IF.C.7A

Use the graph to determine the solutions.

• -1 and -3
• 1 and -3
• 1 and 3
• -1 and 3

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept of the following equation?

y = x² - 3x - 4

• y = 1

• y = - 4

• y = 3

• y = - 3

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry for the equation f(x) = 3x² - 18x + 23

• x = -3

• x = 9

• x = 3

• x = -9

Tags

CCSS.HSA.REI.B.4

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• y intercept

Tags

CCSS.HSF-IF.C.7A