{
"query": {
"display": "vertices $$y^{2}+2y+x+5=0$$",
"symbolab_question": "CONIC#vertices y^{2}+2y+x+5=0"
},
"solution": {
"level": "PERFORMED",
"subject": "Geometry",
"topic": "Parabola",
"subTopic": "vertices",
"default": "(h,k)=(-4,-1),p=-\\frac{1}{4}",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Parabola vertex given $$y^{2}+2y+x+5=0:{\\quad}\\left(h,\\:k\\right)=\\left(-4,\\:-1\\right),\\:p=-\\frac{1}{4}$$",
"input": "y^{2}+2y+x+5=0",
"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 $$y^{2}+2y+x+5=0\\:$$in the standard form",
"input": "y^{2}+2y+x+5=0",
"steps": [
{
"type": "step",
"primary": "Rewrite as",
"result": "x=-y^{2}-2y-5"
},
{
"type": "interim",
"title": "Complete the square $$-y^{2}-2y-5:{\\quad}-\\left(y+1\\right)^{2}-4$$",
"input": "-y^{2}-2y-5",
"steps": [
{
"type": "step",
"primary": "Write $$-y^{2}-2y-5\\:$$in the form: $$x^2+2ax+a^2$$",
"secondary": [
"Factor out $$-1$$"
],
"result": "-\\left(y^{2}+2y+5\\right)"
},
{
"type": "interim",
"title": "$$2a=2{\\quad:\\quad}a=1$$",
"input": "2a=2",
"steps": [
{
"type": "interim",
"title": "Divide both sides by $$2$$",
"input": "2a=2",
"result": "a=1",
"steps": [
{
"type": "step",
"primary": "Divide both sides by $$2$$",
"result": "\\frac{2a}{2}=\\frac{2}{2}"
},
{
"type": "step",
"primary": "Simplify",
"result": "a=1"
}
],
"meta": {
"interimType": "Divide Both Sides Specific 1Eq",
"gptData": "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"
}
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Equations"
}
},
{
"type": "step",
"primary": "Add and subtract $$1^{2}\\:$$",
"result": "-\\left(y^{2}+2y+5+1^{2}-1^{2}\\right)"
},
{
"type": "step",
"primary": "$$x^2+2ax+a^2=\\left(x+a\\right)^2$$",
"secondary": [
"$$y^{2}+2y+1^{2}=\\left(y+1\\right)^{2}$$",
"Complete the square"
],
"result": "-\\left(\\left(y+1\\right)^{2}+5-1^{2}\\right)"
},
{
"type": "step",
"primary": "Simplify",
"result": "-\\left(y+1\\right)^{2}-4"
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Complete Square 1Eq"
}
},
{
"type": "step",
"result": "x=-\\left(y+1\\right)^{2}-4"
},
{
"type": "step",
"primary": "Add $$4$$ to both sides",
"result": "x+4=-\\left(y+1\\right)^{2}"
},
{
"type": "step",
"primary": "Divide by coefficient of square terms: $$-1$$",
"result": "-\\left(x+4\\right)=\\left(y+1\\right)^{2}"
},
{
"type": "step",
"primary": "Rewrite in standard form",
"result": "4\\left(-\\frac{1}{4}\\right)\\left(x-\\left(-4\\right)\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
}
],
"meta": {
"interimType": "Parabola Canonical Format 1Eq"
}
},
{
"type": "step",
"result": "4\\left(-\\frac{1}{4}\\right)\\left(x-\\left(-4\\right)\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
},
{
"type": "step",
"primary": "Therefore parabola properties are:",
"result": "\\left(h,\\:k\\right)=\\left(-4,\\:-1\\right),\\:p=-\\frac{1}{4}"
}
],
"meta": {
"solvingClass": "Parabola"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"funcsToDraw": {
"funcs": [
{
"evalFormula": "y=\\sqrt{4(-\\frac{1}{4})(x-(-4))}-1",
"displayFormula": "4(-\\frac{1}{4})(x-(-4))=(y-(-1))^{2}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "y=-\\sqrt{4(-\\frac{1}{4})(x-(-4))}-1",
"displayFormula": "4(-\\frac{1}{4})(x-(-4))=(y-(-1))^{2}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "x=-\\frac{15}{4}",
"displayFormula": "x=-\\frac{15}{4}",
"attributes": {
"color": "GRAY",
"lineType": "NORMAL",
"labels": [
"\\mathrm{directrix}"
],
"isAsymptote": false
}
}
]
},
"pointsToDraw": {
"pointsLatex": [
"(-4,-1)",
"(-\\frac{17}{4},-1)"
],
"pointsDecimal": [
{
"fst": -4,
"snd": -1
},
{
"fst": -4.25,
"snd": -1
}
],
"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{1}{4})(x-(-4))=(y-(-1))^{2}",
"paramsLatex": [],
"paramsReplacementsLatex": []
}
],
"localBoundingBox": {
"xMin": -5.714285714285714,
"xMax": 1.4285714285714288,
"yMin": -4.414285714285715,
"yMax": 2.7285714285714286
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},
"showViewLarger": true
}
},
"meta": {
"showVerify": true
}
}
Solution
vertices
Solution
Solution steps
Rewrite in the standard form
Therefore parabola properties are:
Graph
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Frequently Asked Questions (FAQ)
What is the vertices y^2+2y+x+5=0 ?
The vertices y^2+2y+x+5=0 is (h,k)=(-4,-1),p=-1/4