Parabolas Quiz

A general formula for a parabola is y2 = 4px. What is the value of p in the equation y2 = -4x? p =

-1

A parabola has a vertex at (0,0). The focus of the parabola is located at (4,0). What is the equation of the directrix?

-4

A parabola has a vertex at (0,0). The focus of the parabola is located on the positive y-axis. In which direction must the parabola open?

A

Which graph represents the equation y2 = -4x?

A

A parabola has a vertex at (0,0). The focus of the parabola is located on the positive x-axis. Which part of the graph will the directrix pass through?

B

A parabola has a vertex at (0,0). The equation for the directrix of the parabola is x = -4. In which direction does the parabola open?

C

A parabola can be represented by the equation x2 = -20y. What are the coordinates of the focus of the parabola?

D

The focus of a parabola is located at (0,-2). The directrix of the parabola is represented by y = 2. Which equation represents the parabola?

D

A parabola, with its vertex at the origin, has a directrix at y = 3. Which statements about the parabola are true? Check all that apply.

Options A and D