{
"query": {
"display": "$$\\left(y-\\left(-1\\right)\\right)^{2}=2\\left(x-1\\right)$$",
"symbolab_question": "CONIC#(y-(-1))^{2}=2(x-1)"
},
"solution": {
"level": "PERFORMED",
"subject": "Geometry",
"topic": "Parabola",
"subTopic": "formula",
"default": "(h,k)=(1,-1),p=\\frac{1}{2}"
},
"steps": {
"type": "interim",
"title": "$$\\left(y-\\left(-1\\right)\\right)^{2}=2\\left(x-1\\right):\\quad$$Parabola with vertex at $$\\left(h,\\:k\\right)=\\left(1,\\:-1\\right),\\:$$and focal length $$|p|=\\frac{1}{2}$$",
"input": "\\left(y-\\left(-1\\right)\\right)^{2}=2\\left(x-1\\right)",
"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 $$\\left(y-\\left(-1\\right)\\right)^{2}=2\\left(x-1\\right)\\:$$in the standard form:$${\\quad}4\\cdot\\:\\frac{1}{2}\\left(x-1\\right)=\\left(y-\\left(-1\\right)\\right)^{2}$$",
"input": "\\left(y-\\left(-1\\right)\\right)^{2}=2\\left(x-1\\right)",
"steps": [
{
"type": "step",
"primary": "Switch sides",
"result": "2\\left(x-1\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
},
{
"type": "step",
"primary": "Factor $$2$$",
"result": "2\\left(x+\\frac{-2}{2}\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
},
{
"type": "step",
"primary": "Simplify",
"result": "2\\left(x-1\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
},
{
"type": "step",
"primary": "Factor $$4$$",
"result": "4\\cdot\\:\\frac{2}{4}\\left(x-1\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
},
{
"type": "step",
"primary": "Simplify",
"result": "4\\cdot\\:\\frac{1}{2}\\left(x-1\\right)=\\left(y-\\left(-1\\right)\\right)^{2}"
}
],
"meta": {
"interimType": "Parabola Canonical Format Title 1Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7x7c70iKgri0FohdBA3wVDTQw7MNONbtupZ5amwm1UvUmnIPvAXZpEx2L4ux3cQBbx76H4czezJl99cnQ2vKI4SNyQCASdkcKydARUOaLOvsYmi/QRr/a+1JySSnsiH5LdcVxc9HCPCyzZlJGlG1xKaYN6z/6D5StsnFwXE8BrNwRztKE552b3ssyeALQtWRjdllRtXcbobcHL3OfgLNk6O8r5YU2ZsAeB241LtFBNTNXa3MeiSeRf1gRQdFDf9qEe77HpL4nTQimDoQK8+yrQlM61C7GItjVtv6yXm2ATwU="
}
},
{
"type": "step",
"primary": "Therefore parabola properties are:",
"result": "\\left(h,\\:k\\right)=\\left(1,\\:-1\\right),\\:p=\\frac{1}{2}"
}
],
"meta": {
"solvingClass": "Parabola"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"funcsToDraw": {
"funcs": [
{
"evalFormula": "y=\\sqrt{4\\frac{1}{2}(x-1)}-1",
"displayFormula": "4\\frac{1}{2}(x-1)=(y-(-1))^{2}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "y=-\\sqrt{4\\frac{1}{2}(x-1)}-1",
"displayFormula": "4\\frac{1}{2}(x-1)=(y-(-1))^{2}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "x=\\frac{1}{2}",
"displayFormula": "x=\\frac{1}{2}",
"attributes": {
"color": "GRAY",
"lineType": "NORMAL",
"labels": [
"\\mathrm{directrix}"
],
"isAsymptote": false
}
}
]
},
"pointsToDraw": {
"pointsLatex": [
"(1,-1)",
"(\\frac{3}{2},-1)"
],
"pointsDecimal": [
{
"fst": 1,
"snd": -1
},
{
"fst": 1.5,
"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\\cdot \\frac{1}{2}(x-1)=(y-(-1))^{2}",
"paramsLatex": [],
"paramsReplacementsLatex": []
}
],
"localBoundingBox": {
"xMin": -4.625,
"xMax": 6.625,
"yMin": -6.625,
"yMax": 4.625
}
},
"showViewLarger": true
}
}
}
Solution
Solution
Solution steps
Rewrite in the standard form:
Therefore parabola properties are:
Graph
Popular Examples
Frequently Asked Questions (FAQ)
What is (y-(-1))^2=2(x-1) ?
The solution to (y-(-1))^2=2(x-1) is Parabola with (h,k)=(1,-1),p= 1/2