{
"query": {
"display": "$$-9x-3y^{2}=6$$",
"symbolab_question": "CONIC#-9x-3y^{2}=6"
},
"solution": {
"level": "PERFORMED",
"subject": "Geometry",
"topic": "Parabola",
"subTopic": "formula",
"default": "(h,k)=(-\\frac{2}{3},0),p=-\\frac{3}{4}"
},
"steps": {
"type": "interim",
"title": "$$-9x-3y^{2}=6:\\quad$$Parabola with vertex at $$\\left(h,\\:k\\right)=\\left(-\\frac{2}{3},\\:0\\right),\\:$$and focal length $$|p|=\\frac{3}{4}$$",
"input": "-9x-3y^{2}=6",
"steps": [
{
"type": "definition",
"title": "Parabola standard equation",
"text": "$$4p\\left(x-h\\right)=\\left(y-k\\right)^{2}\\:$$ is the standard equation for a right-left facing parabola with vertex at $$\\left(h,\\:k\\right),\\:$$<br/>and a focal length $$|p|$$"
},
{
"type": "interim",
"title": "Rewrite $$-9x-3y^{2}=6\\:$$in the standard form:$${\\quad}4\\left(-\\frac{3}{4}\\right)\\left(x-\\left(-\\frac{2}{3}\\right)\\right)=\\left(y-0\\right)^{2}$$",
"input": "-9x-3y^{2}=6",
"steps": [
{
"type": "step",
"primary": "Add $$3y^{2}$$ to both sides",
"result": "-9x-3y^{2}+3y^{2}=6+3y^{2}"
},
{
"type": "step",
"primary": "Refine",
"result": "-9x=6+3y^{2}"
},
{
"type": "step",
"primary": "Subtract $$6$$ from both sides",
"result": "-9x-6=6+3y^{2}-6"
},
{
"type": "step",
"primary": "Refine",
"result": "-9x-6=3y^{2}"
},
{
"type": "step",
"primary": "Divide both sides by $$3$$",
"result": "\\frac{-9x-6}{3}=\\frac{3y^{2}}{3}"
},
{
"type": "step",
"primary": "Simplify",
"result": "-3x-2=y^{2}"
},
{
"type": "step",
"primary": "Factor $$-3$$",
"result": "\\left(-3\\right)\\left(x+\\frac{-2}{-3}\\right)=y^{2}"
},
{
"type": "step",
"primary": "Simplify",
"result": "\\left(-3\\right)\\left(x+\\frac{2}{3}\\right)=y^{2}"
},
{
"type": "step",
"primary": "Factor $$4$$",
"result": "4\\cdot\\:\\frac{-3}{4}\\left(x+\\frac{2}{3}\\right)=y^{2}"
},
{
"type": "step",
"primary": "Simplify",
"result": "4\\left(-\\frac{3}{4}\\right)\\left(x+\\frac{2}{3}\\right)=y^{2}"
},
{
"type": "step",
"primary": "Rewrite as",
"result": "4\\left(-\\frac{3}{4}\\right)\\left(x-\\left(-\\frac{2}{3}\\right)\\right)=\\left(y-0\\right)^{2}"
}
],
"meta": {
"interimType": "Parabola Canonical Format Title 1Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7yTxDh034SWhZ5ueVIbVjw5CSbGFPWhWMuZIMKkBJ4lyxzzcMHjSLmak70ycPvkgfLHlRs0F2lS8z71EJhfVfEQcoiLKrONfIA8+fB2d3wo6Z5DbXsf4Yp7miHKLOt1dFzH3dXoqGCinFfA7QshfpoDqwIYntN54hgQG/ljjxuqURztKE552b3ssyeALQtWRjdllRtXcbobcHL3OfgLNk6O3sW8S9ygXbUTm3dWG2zyNNTGhbJadPPNBGBjLoQfbEVVjP9e0t4R9KhD4d9/fAzL8yD3hLQ33B7/8/LpbPE3o="
}
},
{
"type": "step",
"primary": "Therefore parabola properties are:",
"result": "\\left(h,\\:k\\right)=\\left(-\\frac{2}{3},\\:0\\right),\\:p=-\\frac{3}{4}"
}
],
"meta": {
"solvingClass": "Parabola"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"funcsToDraw": {
"funcs": [
{
"evalFormula": "y=\\sqrt{4(-\\frac{3}{4})(x-(-\\frac{2}{3}))}+0",
"displayFormula": "4(-\\frac{3}{4})(x-(-\\frac{2}{3}))=y^{2}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "y=-\\sqrt{4(-\\frac{3}{4})(x-(-\\frac{2}{3}))}+0",
"displayFormula": "4(-\\frac{3}{4})(x-(-\\frac{2}{3}))=y^{2}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "x=\\frac{1}{12}",
"displayFormula": "x=\\frac{1}{12}",
"attributes": {
"color": "GRAY",
"lineType": "NORMAL",
"labels": [
"\\mathrm{directrix}"
],
"isAsymptote": false
}
}
]
},
"pointsToDraw": {
"pointsLatex": [
"(-\\frac{2}{3},0)",
"(-\\frac{17}{12},0)"
],
"pointsDecimal": [
{
"fst": -0.6666666666666666,
"snd": 0
},
{
"fst": -1.4166666666666667,
"snd": 0
}
],
"attributes": [
{
"color": "PURPLE",
"labels": [
"\\mathrm{vertex}"
],
"labelTypes": [
"DEFAULT"
],
"labelColors": [
"PURPLE"
]
},
{
"color": "PURPLE",
"labels": [
"\\mathrm{focus}"
],
"labelTypes": [
"DEFAULT"
],
"labelColors": [
"PURPLE"
]
}
]
},
"functionChanges": [
{
"origFormulaLatex": [],
"finalFormulaLatex": [],
"plotTitle": "4(-\\frac{3}{4})(x-(-\\frac{2}{3}))=y^{2}",
"paramsLatex": [],
"paramsReplacementsLatex": []
}
],
"localBoundingBox": {
"xMin": -9.104166666666666,
"xMax": 7.770833333333334,
"yMin": -8.4375,
"yMax": 8.4375
}
},
"showViewLarger": true
}
}
}
Solution
Solution
Solution steps
Rewrite in the standard form:
Therefore parabola properties are:
Graph
Popular Examples
Frequently Asked Questions (FAQ)
What is -9x-3y^2=6 ?
The solution to -9x-3y^2=6 is Parabola with (h,k)=(-2/3 ,0),p=-3/4