Features of Parabola

What is the vertex of this parabola?

What is the axis of symmetry for this parabola?

• x=2

• x=3

• x=4

• x=5

Identify the vertex

• (-1,-9)

• (0,-8)

• (-4,0)

• (0,0)

Name the Axis of Symmetry

• x = 1

• x = 0

What is the significance of the point (-3, 18)?

• x-intercept

• y-intercept

• vertex

• axis of symmetry

If "a" is negative, does the parabola open up or down? Does it have a maximum or minimum?

• Down, Max

• Down, Min

• Up, Max

• Up, Min

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• none of these

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

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

When a parabola opens "down" the vertex is known as a __________.