Question

Need help. What are the focus and directrix of the parabola with the equation y =1/12 x^2? explaination pleassee
@TrashMan914
2. What is an equation of a parabola with a vertex at the origin and directrix x = 4.75? (1 point)y = – x2
y = x2
x = y2
x = – y2

3. A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward. (1 point)y = x2
y = – x2
y = x2
y = x2

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

12y = x2 –6x + 45 (1 point)vertex (–3, –3); focus (0, 3); directrix y = 3
vertex (3, 3); focus (3, 6); directrix y = 0
vertex (3, –3); focus (0, 6); directrix y = –3
vertex (–3, 3); focus (3, –3); directrix y = 0

5. What is an equation of a parabola with the given vertex and focus?

vertex: (5, 4) ; focus: (8, 4) (1 point)x =(y – 4)2 + 5
y =(x + 4)2 – 5
x =(y + 4)2 – 5
y =(x – 4)2 + 5

Answer 1

@myko