Intro Parabola

• y-intercept

• x-intercept

• x-coordinate of vertex

• y-coordinate of vertex

A parabola intersects the x-axis at x=2 and x=14.

What is the x-coordinate of the parabola's vertex?

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

Does the equation open up or down? 
Y = -3x² +7x - 2

• up

• down

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

If y=0,

then what two values could x be?

• 1

• 2

• 3

• 4