Graphing Parabolas

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

If we have the equation y=ax²+bx+c, how can we can find the axis of symmetry?

• -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

• x-intercept

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

What is the y-intercept of the following equation?

y=x²-3x-4

• (0, 1)

• (0, -4)

• (0, 3)

• (0, -3)

Tags

CCSS.HSF-IF.C.7A

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

• x = -3

• x = 9

• x = 3

• x = -9

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down

Tags

CCSS.HSF-IF.C.7A

What is the green dashed line called?

• x-intercepts

• parabola

• axis of symmetry

• y intercept

Tags

CCSS.HSF-IF.C.7A