Parabolas

What is the green dashed line called?

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

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

• x = -4

• x = 4

• y = 4

• y = -4

• (-4, 63)

• (-4, 31)

• (4, -1)

• (4, -31)

What is the vertex of the given parabola?

• (1, 2)

• x = 2

• (2, 1)

• (0, -4)

What is the vertex of the given parabola?

• (1, - 4)

• (-1, 0), (3, 0)

• x = 1

• (-4, 1)

Is this a max or min?

• max
• min
• cannot be determined

Quadratic equations take the shape of a _______ when graphed.

• parabola

• straight line

• snaked line

• elliptical

Factor x² + 12x + 20
WHAT TWO NUMBERS MULTIPLY TO 20
AND ADD UP TO 12? 

• (x + 2)(x + 10)
• (x + 7)(x + 5)
• (x + 6)(x + 6)

What is the significance of the ordered pair (2, -4) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry