{
"query": {
"display": "foci $$4y^{2}-25x^{2}=100$$",
"symbolab_question": "CONIC#foci 4y^{2}-25x^{2}=100"
},
"solution": {
"level": "PERFORMED",
"subject": "Geometry",
"topic": "Hyperbola",
"subTopic": "foci",
"default": "(0,\\sqrt{29}),(0,-\\sqrt{29})"
},
"steps": {
"type": "interim",
"title": "Hyperbola foci given $$4y^{2}-25x^{2}=100:{\\quad}\\left(0,\\:\\sqrt{29}\\right),\\:\\left(0,\\:-\\sqrt{29}\\right)$$",
"steps": [
{
"type": "definition",
"title": "Hyperbola Foci",
"text": "For an up-down facing hyperbola, the Foci (focus points) are defined as $$\\left(h,\\:k+c\\right),\\:\\left(h,\\:k-c\\right),\\:$$<br/>where $$c=\\sqrt{a^2+b^2}$$ is the distance from the center $$\\left(h,\\:k\\right)\\:$$to a focus"
},
{
"type": "step",
"result": "\\left(h,\\:k+c\\right),\\:\\left(h,\\:k-c\\right)"
},
{
"type": "step",
"primary": "Calculate Hyperbola properties"
},
{
"type": "interim",
"title": "$$4y^{2}-25x^{2}=100:\\quad$$Up-down Hyperbola with $$\\left(h,\\:k\\right)=\\left(0,\\:0\\right),\\:a=5,\\:b=2$$",
"input": "4y^{2}-25x^{2}=100",
"steps": [
{
"type": "definition",
"title": "Hyperbola standard equation",
"text": "$$\\frac{\\left(y-k\\right)^{2}}{a^2}-\\frac{\\left(x-h\\right)^{2}}{b^2}=1\\:$$ is the standard equation for an up-down facing hyperbola<br/>with center $$\\bold{\\left(h,\\:k\\right)},\\:$$ semi-axis $$\\bold{a}$$ and semi-conjugate-axis $$\\bold{b}$$."
},
{
"type": "interim",
"title": "Rewrite $$4y^{2}-25x^{2}=100\\:$$in the form of a standard hyperbola equation",
"input": "4y^{2}-25x^{2}=100",
"steps": [
{
"type": "step",
"primary": "Divide by coefficient of square terms: $$25$$",
"result": "-x^{2}+\\frac{4}{25}y^{2}=4"
},
{
"type": "step",
"primary": "Divide by coefficient of square terms: $$4$$",
"result": "-\\frac{1}{4}x^{2}+\\frac{1}{25}y^{2}=1"
},
{
"type": "step",
"primary": "Refine",
"result": "-\\frac{x^{2}}{4}+\\frac{y^{2}}{25}=1"
},
{
"type": "step",
"primary": "Rewrite in standard form",
"result": "\\frac{\\left(y-0\\right)^{2}}{5^{2}}-\\frac{\\left(x-0\\right)^{2}}{2^{2}}=1"
}
],
"meta": {
"interimType": "Hyperbola Canonical Format 1Eq"
}
},
{
"type": "step",
"result": "\\frac{\\left(y-0\\right)^{2}}{5^{2}}-\\frac{\\left(x-0\\right)^{2}}{2^{2}}=1"
},
{
"type": "step",
"primary": "Therefore Hyperbola properties are:",
"result": "\\left(h,\\:k\\right)=\\left(0,\\:0\\right),\\:a=5,\\:b=2"
}
],
"meta": {
"interimType": "Hyperbola UpDown Top Title 3Eq"
}
},
{
"type": "step",
"result": "\\left(0,\\:0+c\\right),\\:\\left(0,\\:0-c\\right)"
},
{
"type": "step",
"primary": "Compute $$c:$$"
},
{
"type": "interim",
"title": "$$c=\\sqrt{5^{2}+2^{2}}:{\\quad}\\sqrt{29}$$",
"input": "\\sqrt{5^{2}+2^{2}}",
"steps": [
{
"type": "step",
"primary": "$$5^{2}=25$$",
"result": "=\\sqrt{25+2^{2}}"
},
{
"type": "step",
"primary": "$$2^{2}=4$$",
"result": "=\\sqrt{25+4}"
},
{
"type": "step",
"primary": "Add the numbers: $$25+4=29$$",
"result": "=\\sqrt{29}"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Solver",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7BUa0Z7lbkNf0/S+xY3Q9OV1iJRJdZU8Snq+IOvMxYQFwkKGJWEPFPk38sdJMsyPIy2IXR5dVA8Sv5V/g5tZaxhuWGmGj3G77AwaA352mJ8vF2m7oyRFn7Q7v6gtKbJ6EialcV/dI5TH4fXyp+ncwuA=="
}
},
{
"type": "step",
"result": "\\left(0,\\:0+\\sqrt{29}\\right),\\:\\left(0,\\:0-\\sqrt{29}\\right)"
},
{
"type": "step",
"primary": "Refine",
"result": "\\left(0,\\:\\sqrt{29}\\right),\\:\\left(0,\\:-\\sqrt{29}\\right)"
}
],
"meta": {
"solvingClass": "Hyperbola"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"funcsToDraw": {
"funcs": [
{
"evalFormula": "y=\\frac{5x}{2}",
"displayFormula": "y=\\frac{5x}{2}",
"attributes": {
"color": "PURPLE",
"lineType": "DASH",
"isAsymptote": true
}
},
{
"evalFormula": "y=-\\frac{5x}{2}",
"displayFormula": "y=-\\frac{5x}{2}",
"attributes": {
"color": "PURPLE",
"lineType": "DASH",
"isAsymptote": true
}
},
{
"evalFormula": "y=\\sqrt{25(\\frac{x^{2}}{2^{2}}+1)}",
"displayFormula": "\\frac{y^{2}}{5^{2}}-\\frac{x^{2}}{2^{2}}=1",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "y=-\\sqrt{25(\\frac{x^{2}}{2^{2}}+1)}",
"displayFormula": "\\frac{y^{2}}{5^{2}}-\\frac{x^{2}}{2^{2}}=1",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
}
]
},
"pointsToDraw": {
"pointsLatex": [
"(0,0)",
"(0,\\sqrt{29})",
"(0,-\\sqrt{29})"
],
"pointsDecimal": [
{
"fst": 0,
"snd": 0
},
{
"fst": 0,
"snd": 5.385164807134504
},
{
"fst": 0,
"snd": -5.385164807134504
}
],
"attributes": [
{
"color": "PURPLE",
"labels": [
"\\mathrm{Center}"
],
"labelTypes": [
"DEFAULT"
],
"labelColors": [
"PURPLE"
]
},
{
"color": "PURPLE",
"labels": [
"\\mathrm{focus}"
],
"labelTypes": [
"DEFAULT"
],
"labelColors": [
"PURPLE"
]
},
{
"color": "PURPLE",
"labels": [
"\\mathrm{focus}"
],
"labelTypes": [
"DEFAULT"
],
"labelColors": [
"PURPLE"
]
}
]
},
"linesToDraw": [
{
"p1x": "0",
"p1y": "0",
"p2x": "0",
"p2y": "5",
"attributes": {
"color": "GRAY",
"lineType": "BOLD",
"labels": [
"a=5"
],
"isAsymptote": false
}
},
{
"p1x": "0",
"p1y": "0",
"p2x": "2",
"p2y": "0",
"attributes": {
"color": "GRAY",
"lineType": "BOLD",
"labels": [
"b=2"
],
"isAsymptote": false
}
}
],
"functionChanges": [
{
"origFormulaLatex": [],
"finalFormulaLatex": [],
"plotTitle": "\\frac{y^{2}}{5^{2}}-\\frac{x^{2}}{2^{2}}=1",
"paramsLatex": [],
"paramsReplacementsLatex": []
}
],
"localBoundingBox": {
"xMin": -22.5,
"xMax": 22.5,
"yMin": -22.5,
"yMax": 22.5
}
},
"showViewLarger": true
}
}
}
Solution
foci
Solution
Solution steps
Calculate Hyperbola properties
Up-down Hyperbola with
Compute
Refine
Graph
Popular Examples
-9x^2+y^2-72x-153=0vertices f(x)=x^2-2x-15vertices x^2-9y^2=9foci (x^2)/(36)+(y^2)/(100)=1foci vertices f(x)=-x^2-2x+3vertices
Frequently Asked Questions (FAQ)
What is the foci 4y^2-25x^2=100 ?
The foci 4y^2-25x^2=100 is (0,sqrt(29)),(0,-sqrt(29))