Equations of Parabolas and Key Features

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

• x=-13

• x=1

• x=-1

• x=3

What does "a" control in a graph of f(x) = ax²+ bx+ c?

• Opens up or down

• Where the graph crosses at X-intercept

• Where the graph crosses at Y-intercept

According to the table, what is the vertex?

• (-2, -1)

• (-5, 8)

• (-3, 0)

• (1, 8)

• a = -3, b = -2, c = 5

• a = 3, b = -2, c =-5

• a = -3, b = -2, c =-5

• a = 3, b = 2, c = -5

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

What are the x-intercepts of the function?

y=(x-4)(x-2)

• x=4 and x=2

• x=-4 and x = -2

• x = 4 and x= -2

• x = -4 and x = 2

Tags

CCSS.HSF-IF.C.7C

Does the quadratic have a max/min vertex, and does the parabola open up/down?

• max/ opens down

• min/ opens up

• max/ opens up

• min/ opens down

What is the vertex of this quadratic equation?

• (-2,5)

• (2,5)

• (5,-2)

• (-5,-2)

What is the y-intercept of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

Tags

CCSS.HSF-IF.C.7A

What key feature tells the lowest point on the roller coaster?

• y-intercept

• vertex

• Axis of Symmetry

• x-intercept

Tags

CCSS.HSF-IF.C.7A