WebApr 11, 2024 · Illustration 5: Find the coordinates of the focus, the axis of the parabola, the equation of directrix and the length of the latus rectum for x 2 = -16y. Solution: The given equation is x 2 = -16y. Here, the coefficient of y is negative. Hence, the parabola opens downwards. On comparing this equation with x 2 = -4ay, we get,-4a = -16. a = 4 WebJan 10, 2024 · The focus of the parabola x2 = -16y is (a) (4, 0) (b) (0, 4) (c) (–4, 0) (d) (0, –4) parabola jee jee mains Share It On 1 Answer +1 vote answered Jan 10, 2024 by alam905 (91.6k points) selected Jan 11, 2024 by faiz Best answer Correct option (d) (0, –4) Explanation: a = 4, vertex = (0,0) , focus = (0,-4) . ← Prev Question Next Question →
Парабола
WebJan 10, 2024 · The focus of the parabola x2 = -16y is (a) (4, 0) (b) (0, 4) (c) (–4, 0) (d) (0, –4) parabola jee jee mains Share It On 1 Answer +1 vote answered Jan 10, 2024 by … WebMar 30, 2024 · Transcript Ex 11.2, 4 Find the coordinates of the focus, axis of the parabola, the equation of directrix and the length of the latus … new to do in las vegas
Parabola focus & directrix review (article) Khan Academy
WebNov 11, 2024 · An ellipse has an equation 25x 2 + 16y 2 + 150x - 32y = 159. Find the standard equations of all parabolas whose vertex is a focus of this ellipse and whose focus is a vertex of this ellipse. (There are four equations of parabola) parabola Follow • 1 Add comment Report 1 Expert Answer Best Newest Oldest Tom K. answered • 11/11/20 … WebGiven the focus and the directrix of a parabola, we can find the parabola's equation. Consider, for example, the parabola whose focus is at (-2,5) (−2,5) and directrix is y=3 y = 3. We start by assuming a general point on the parabola (x,y) (x,y). WebGiven equation of parabola x 2=16y general form of parabola is (x−h) 2=4a(y−k) here (h,k)=(0,0) and a=4 focus lies at (0,4) since a=4 dirctrix passes through focus so equation of directrix is y+4=0 length of latus rectum is 4a so 4(4)=16 therefore length of latus rectum is 16 Solve any question of Conic Sections with:- Patterns of problems > new to disney plus this year