The problem presents the equation $x^2 = -12y$. We need to find the form of this equation. It looks like a parabola.

GeometryParabolaConic SectionsEquation of a ParabolaVertexFocusDirectrix
2025/3/18

1. Problem Description

The problem presents the equation x2=12yx^2 = -12y. We need to find the form of this equation. It looks like a parabola.

2. Solution Steps

The equation is given as x2=12yx^2 = -12y.
We can rewrite this as x2=4(3)yx^2 = 4(-3)y.
The general form of a parabola opening upward or downward with vertex at the origin is x2=4pyx^2 = 4py, where pp is the distance from the vertex to the focus and from the vertex to the directrix.
In this case, we have 4p=124p = -12, which gives p=3p = -3. Since pp is negative, the parabola opens downward.
The vertex is at (0,0)(0, 0).
The focus is at (0,p)(0, p), so the focus is at (0,3)(0, -3).
The directrix is y=py = -p, so the directrix is y=3y = 3.

3. Final Answer

The equation represents a parabola opening downward with vertex at the origin. The equation can be written as x2=12yx^2 = -12y.

Related problems in "Geometry"

The problem asks us to construct an equilateral triangle with a side length of 7 cm using a compass ...

Geometric ConstructionEquilateral TriangleCompass and Straightedge
2025/6/4

The problem asks to construct an equilateral triangle using a pair of compass and a pencil, given a ...

Geometric ConstructionEquilateral TriangleCompass and Straightedge
2025/6/4

The problem asks to find the value of $p$ in a triangle with angles $4p$, $6p$, and $2p$.

TriangleAnglesAngle Sum PropertyLinear Equations
2025/6/4

The angles of a triangle are given as $2p$, $4p$, and $6p$ (in degrees). We need to find the value o...

TrianglesAngle Sum PropertyLinear Equations
2025/6/4

The problem asks to construct an equilateral triangle with sides of length 7 cm using a compass and ...

ConstructionEquilateral TriangleCompass and Straightedge
2025/6/4

We are given two polygons, $P$ and $Q$, on a triangular grid. We need to find all sequences of trans...

TransformationsRotationsReflectionsTranslationsGeometric TransformationsPolygons
2025/6/4

We need to describe the domain of the following two functions geometrically: 27. $f(x, y, z) = \sqrt...

3D GeometryDomainSphereHyperboloidMultivariable Calculus
2025/6/3

We need to find the gradient of the line passing through the points $P(2, -3)$ and $Q(5, 3)$.

Coordinate GeometryGradientSlope of a Line
2025/6/3

The problem presents a diagram with a circle and some angles. Given that $\angle PMQ = 34^\circ$ and...

Circle GeometryAnglesCyclic QuadrilateralsInscribed Angles
2025/6/3

In the given diagram, we are given that $∠PMQ = 34°$ and $∠NQM = 28°$. We need to find the measure o...

AnglesCirclesCyclic QuadrilateralsTriangles
2025/6/3