Parts of Parabolas

What is the name given to the point

(4 , -9)?

• just a plain point

• root

• y-intercept

• vertex

Does the graph represent a min/max/both/neither?

• Minimum

• Maximum

• Both

• Neither

What is the minimum of the function?

• A -9

• B) 0

• C) 4

• D) 8

What is the axis of symmetry?

• A y = 4

• B) x = 0

• C) x = 4

• D) y= 7

In the equation of a parabola, d is the distance from the ​ (a)   to the ​ (b)   .

• vertex

• focus

• parabola

Given a parabola with a vertex at (4,3) and a directrix of y=1, write the equation of the parabola.

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

Given a parabola with a vertex of (4,0) and a focus of (4,-1) write the equation of the parabola.

Mathematical Equivalence

ON

How many roots does the function have?

• A 0

• B) 1

• C) 2

• D) ∞

Which functions represent the graph? (select all that apply)

• f(x) = (x + 4)² - 9

• f(x) = (x - 4)² - 9

• f(x) = x² - 8x + 7

• f(x) = x² - 8x - 9