Parabola

What are the x-intercept(s) of this graph?

• -1 and -3

• -1 and 3

• 1 and 3

• 1 and -3

What is the significance of the ordered pair (2, -4) to the graph?

• it is the vertex

• it is the y-intercept

• it is the axis of symmetry

• it is the x-intercept

Since the parabola opens right, then the a-value had to be...

• positive

• negative

Find the vertex, focus, and directrix of the parabola with the given equation. 

• vertex:  (3, 2) focus:  (5, 2) directrix:  x = 1

•  vertex:  (-3, -2) focus:  (-1, -2) directrix:  x = -5

• vertex:  (2, 3) focus:  (4, 3) directrix:  x = 0

• vertex:  (3, 2) focus:  (1, 2) directrix:  x = 5

Identify the correct graph.

• A

• B

• C

• D

Identify the correct graph.

• A

• B

• C

• D

Find the vertex, focus, and directrix of the parabola with the given equation. 

•  vertex:  (-4, 2) focus:  (-4, 6) directrix:  y = -2

• vertex:  (4, -2) focus:  (4, 2) directrix:  y = -6

•  vertex:  (2, -4) focus:  (2, 0) directrix:  y = -8

• vertex:  (-4, 2) focus:  (-4, -2) directrix:  x = 6

How WIDE will this parabola be?

• 12

• 3

• (2,3)

• 24

In a horizontal parabola, which coordinate changes from the vertex to the focus?

Mathematical Equivalence

ON

In a parabola, "p" tells you the distance from the ​ (a)   to the ​ (b)   and ​ (c)  

• vertex

• focus

• directrix

• origin

• parabola

• axis