Ask Question
6 July, 12:38

Write an equation of a parabola that opens downward, has a vertex at the origin, and a focus at (0, - 1).

+3
Answers (1)
  1. 6 July, 14:50
    0
    Y=a (x-h) ² + k, vertex (0,0)

    (h, k) vertex, h=0, k=0

    y=a (x-0) ²+0=ax

    y=ax²

    focus (h, k + 1/4*a) focus (0, - 1)

    k + 1/4 * a = - 1,

    0+1/4 a=-1

    1/4a=-1

    a=-4

    y = ax². y=-4x²
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Write an equation of a parabola that opens downward, has a vertex at the origin, and a focus at (0, - 1). ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers