More Features of Parabolas

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

Identify the y-intercept

• (-1,9)

• (0,-8)

• (-4,0)

• (0,0)

Tags

CCSS.HSF-IF.C.7A

Identify the vertex

• (-1,-9)

• (0,-8)

• (-4,0)

• (0,0)

This parabola has 2 roots (x-intercepts), what is one of them?

• (-1,9)

• (0,-8)

• (-4,0)

• (0,0)

Tags

CCSS.HSF-IF.C.7A

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

Mathematical Equivalence

ON

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 this parabola have? 

• 3

• 2

• 0

• 1

Tags

CCSS.HSF-IF.C.7A

What is the name of the point where the parabola crosses the y-axis?

• Zero

• Solution

• y-intercept

• x-intercept

Tags

CCSS.HSF-IF.C.7A

What are the x-intercepts of this parabola?

• (1, 0) and (5, 0)

• (-5, 0)

• (3, 0) and (4, 0)

• (0, 0) and (5, 0)

Tags

CCSS.HSF-IF.C.7A

What's the vertex of the parabola?

• (-2,4)

• (-1,1)

• (0,0)

• (2,4)