Key Features of Parabolas Standard Form

Where is the function decreasing?

What is the axis of symmetry of the above graph?

• x = 3

• y = 3

• y = -1

• x = -1

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

What is the name of this form:
y = ax² + bx + c

• vertex form

• standard form

• factored form

• zero form

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

When a parabola opens "up" the vertex is known as the _________.

Is this point (the vertex) a max or min?

• max

• 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?

• the slope of the graph

• the dividing line for a parabola

• a way to spin my pencil

• the x-axis