Quadratic Graphing

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

Tags

CCSS.HSF-IF.C.7A

Find the axis of symmetry for the graph

• x = -1

• x = 1

• x = 3

• x = -1 , 3

Find the axis of symmetry for f(x) = x² + 4x - 5 

• x = 2

• x = -2

• x = 4

• x = -4

What is the vertex?

• (0, - 1)

• (0, 0.5)

• (-1, 0)

• (0.5, 0)

Find the vertex of f(x) = 2x² - 6x + 1

• x = 1.5

• x = 0.666...

• x = 3

• x = -3

Which of the following functions graphs the parabola shown?

• y = x² - 4x + 1

• y = -2x² - 8x - 3

• y = x² - 4x + 5

• y = 2x² + 6x + 1

Which of the following functions graphs the parabola shown?

• y = x² - 4x + 1

• y = -2x² - 8x - 3

• y = x² - 4x + 5

• y = 2x² + 6x + 1

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?

• the slope of the graph

• the dividing line for a parabola

• a way to spin my pencil

• the x-axis

What is the axis of symmetry?

• x = - 4

• x = - 2

• x = 0

• x = 4

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2