Conic Sections: Parabolas Answers

Which is the directrix of a parabola with equation ?

Mustafa is adjusting a satellite because he finds it is not focusing the incoming radio waves perfectly. The shape of his satellite can be modeled by , where x and y are modeled in inches. He realizes that the static is a result of the feed antenna shifting slightly off the focus point. What is the focus point of the satellite?

The line x = 2 is the axis of symmetry for a parabola. The focus of the parabola is located 3 units from the vertex. Which could be the equation for the parabola?

Which is the focus of a parabola with equation ?

What are the vertex, focus, and directrix of the parabola with the equation ?

Yung is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be modeled by , where x and y are measured in inches. What is the focus point of the flashlight?

Which is the directrix of a parabola with equation ?

Samara is adjusting a satellite because she finds it is not focusing the incoming radio waves perfectly. The shape of her satellite can be modeled by , where x and y are modeled in inches. She realizes that the static is a result of the feed antenna shifting slightly off the focus point. What is the focus point of the satellite?

Which is the standard form of the equation of the parabola shown in the graph?

Which is the standard form of the equation of a parabola with a focus of (0, –3) and its vertex at the origin?