Quadratic Formula Graphing

What is the vertex of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

What is the y-intercept of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

What are the zeros of the parabola? 

• 1, 5

• 3, -5 

• 3, 0

• -6, 1

How do you know if a parabola has a minimum?

• When ‘a’ is positive there is a minimum

• When ‘a’ is negative there is a minimum

• When all the numbers in the equation are negative there is a minimum

• When all the numbers in the equation are positive there is a minimum

What is the equation for axis of symmetry?

• y = 3

• x = 3

• x = 5

• x = 1

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

What is the maximum/minimum of a parabola called?

• vertex

• point

• top

• bottom

How can you tell whether a parabola opens up or opens down by looking at the equation?

• The vertex tells you the direction of the opening

• The value of "a" tells you the direction of the opening.

• All parabolas open upward

• All parabolas open downward

• A
• B
• C
• D