In Exercises 57–62, use the vertex and the direction in which the parabola opens to determine the relation's domain and range. Is the relation a function?
8. Conic Sections
Parabolas
- Textbook Question641views
- Multiple Choice
If a parabola has the focus at and a directrix line , find the standard equation for the parabola.
572views1rank - Textbook Question
Find the vertex, focus, and directrix of the parabola with the given equation. Then graph the parabola. x^2 - 4x - 2y = 0
1137views - Practicetdx-single - 9066435125views
- Textbook Question
Find the focus and directrix of the parabola with the given equation. Then graph the parabola. 8x2 + 4y = 0
730views - Multiple Choice
Graph the parabola , and find the focus point and directrix line.
741views - Multiple Choice
If a parabola has the focus at and a directrix line , find the standard equation for the parabola.
609views - Multiple Choice
Graph the parabola , and find the focus point and directrix line.
700views - Practicetdx-single - 05821e8132views
- Practicetdx-single - c4132c5629views
- Textbook Question
Find the standard form of the equation of the parabola satisfying the given conditions. Focus: (12,0); Directrix: x=-12
1337views - Practicetdx-single - 7bef678130views
- Textbook Question
Identify the conic represented by the equation without completing the square. 4x^2 - 9y^2 - 8x + 12y - 144 = 0
1303views - Textbook Question
Find the vertex, focus, and directrix of the parabola with the given equation. Then graph the parabola. (x-4)^2 = 4(y+1)
1232views - Practicetdx-single - 2fcd3a8832views