{
"query": {
"display": "normal of $$y=x^{2}-x^{3}+x,\\:\\left(-2,\\:10\\right)$$",
"symbolab_question": "PRE_CALC#normal y=x^{2}-x^{3}+x,(-2,10)"
},
"solution": {
"level": "PERFORMED",
"subject": "Calculus",
"topic": "Derivative Applications",
"subTopic": "Normal",
"default": "y=\\frac{1}{15}x+\\frac{152}{15}",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Normal line to $$y=x^{2}-x^{3}+x$$, with a tangent point $$\\left(-2,\\:10\\right):{\\quad}y=\\frac{1}{15}x+\\frac{152}{15}$$",
"steps": [
{
"type": "interim",
"title": "Find the slope of $$y=x^{2}-x^{3}+x:{\\quad}\\frac{dy}{dx}=2x-3x^{2}+1$$",
"input": "y=x^{2}-x^{3}+x",
"steps": [
{
"type": "step",
"primary": "In order to find the slope of the function, take the derivative of $$x^{2}-x^{3}+x$$"
},
{
"type": "interim",
"title": "$$\\frac{d}{dx}\\left(x^{2}-x^{3}+x\\right)=2x-3x^{2}+1$$",
"input": "\\frac{d}{dx}\\left(x^{2}-x^{3}+x\\right)",
"steps": [
{
"type": "step",
"primary": "Apply the Sum/Difference Rule: $$\\left(f{\\pm}g\\right)'=f'{\\pm}g'$$",
"result": "=\\frac{d}{dx}\\left(x^{2}\\right)-\\frac{d}{dx}\\left(x^{3}\\right)+\\frac{dx}{dx}"
},
{
"type": "interim",
"title": "$$\\frac{d}{dx}\\left(x^{2}\\right)=2x$$",
"input": "\\frac{d}{dx}\\left(x^{2}\\right)",
"steps": [
{
"type": "step",
"primary": "Apply the Power Rule: $$\\frac{d}{dx}\\left(x^a\\right)=a{\\cdot}x^{a-1}$$",
"result": "=2x^{2-1}",
"meta": {
"practiceLink": "/practice/derivatives-practice#area=main&subtopic=Power%20Rule",
"practiceTopic": "Power Rule"
}
},
{
"type": "step",
"primary": "Simplify",
"result": "=2x",
"meta": {
"solvingClass": "Solver"
}
}
],
"meta": {
"solvingClass": "Derivatives",
"interimType": "Derivatives",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s79Kg+idP5vLVrjUll6eMdYkmb3s5xAUYje7fZWSRkdb2k3hxk9aCfAWodBRxXgUexcQsmN/cITrVSOMImEqe3fkeCBKuYKgaNJ253gLI69U7cjrVUqImvoUuRtb+2ccCzWsr9JoDNJaP7hueshcYJ6w=="
}
},
{
"type": "interim",
"title": "$$\\frac{d}{dx}\\left(x^{3}\\right)=3x^{2}$$",
"input": "\\frac{d}{dx}\\left(x^{3}\\right)",
"steps": [
{
"type": "step",
"primary": "Apply the Power Rule: $$\\frac{d}{dx}\\left(x^a\\right)=a{\\cdot}x^{a-1}$$",
"result": "=3x^{3-1}",
"meta": {
"practiceLink": "/practice/derivatives-practice#area=main&subtopic=Power%20Rule",
"practiceTopic": "Power Rule"
}
},
{
"type": "step",
"primary": "Simplify",
"result": "=3x^{2}",
"meta": {
"solvingClass": "Solver"
}
}
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"meta": {
"solvingClass": "Derivatives",
"interimType": "Derivatives",
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}
},
{
"type": "interim",
"title": "$$\\frac{dx}{dx}=1$$",
"input": "\\frac{dx}{dx}",
"steps": [
{
"type": "step",
"primary": "Apply the common derivative: $$\\frac{dx}{dx}=1$$",
"result": "=1"
}
],
"meta": {
"solvingClass": "Derivatives",
"interimType": "Derivatives",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s79Kg+idP5vLVrjUll6eMdYko/29fz701XcRtz4b42RqRjqLYrB3CcI0Y7zGHBJCja+8ZDu8iF4MSewt4yms1lIdz2XHFZ6BxfaHSMA6lT+lbVmoiKRd+ttkZ9NIrGodT+"
}
},
{
"type": "step",
"result": "=2x-3x^{2}+1"
}
],
"meta": {
"solvingClass": "Derivatives",
"interimType": "Derivatives"
}
},
{
"type": "step",
"result": "2x-3x^{2}+1"
}
],
"meta": {
"interimType": "Slope Equation Top 1Eq",
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}
},
{
"type": "interim",
"title": "$$EN:\\:Title\\:General\\:Equation\\:Slope\\:At\\:Point\\:2Eq:{\\quad}m=-15$$",
"steps": [
{
"type": "step",
"primary": "Plug $$x=-2$$ into the equation $$2x-3x^{2}+1$$",
"result": "2\\left(-2\\right)-3\\left(-2\\right)^{2}+1"
},
{
"type": "interim",
"title": "Simplify $$2\\left(-2\\right)-3\\left(-2\\right)^{2}+1:{\\quad}-15$$",
"input": "2\\left(-2\\right)-3\\left(-2\\right)^{2}+1",
"result": "=-15",
"steps": [
{
"type": "step",
"primary": "Remove parentheses: $$\\left(-a\\right)=-a$$",
"result": "=-2\\cdot\\:2-3\\left(-2\\right)^{2}+1"
},
{
"type": "step",
"primary": "Multiply the numbers: $$2\\cdot\\:2=4$$",
"result": "=-4-\\left(-2\\right)^{2}\\cdot\\:3+1"
},
{
"type": "interim",
"title": "$$\\left(-2\\right)^{2}=2^{2}$$",
"input": "\\left(-2\\right)^{2}",
"steps": [
{
"type": "step",
"primary": "Apply exponent rule: $$\\left(-a\\right)^{n}=a^{n},\\:$$if $$n$$ is even",
"secondary": [
"$$\\left(-2\\right)^{2}=2^{2}$$"
],
"result": "=2^{2}"
}
],
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}
},
{
"type": "step",
"result": "=-4-2^{2}\\cdot\\:3+1"
},
{
"type": "step",
"primary": "Add/Subtract the numbers: $$-4+1=-3$$",
"result": "=-2^{2}\\cdot\\:3-3"
},
{
"type": "interim",
"title": "$$2^{2}\\cdot\\:3=12$$",
"input": "2^{2}\\cdot\\:3",
"steps": [
{
"type": "step",
"primary": "$$2^{2}=4$$",
"result": "=4\\cdot\\:3"
},
{
"type": "step",
"primary": "Multiply the numbers: $$4\\cdot\\:3=12$$",
"result": "=12"
}
],
"meta": {
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"interimType": "Solver",
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}
},
{
"type": "step",
"result": "=-12-3"
},
{
"type": "step",
"primary": "Subtract the numbers: $$-12-3=-15$$",
"result": "=-15"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Generic Simplify Specific 1Eq",
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},
{
"type": "step",
"result": "m=-15"
}
],
"meta": {
"interimType": "General Equation Slope At Point 2Eq"
}
},
{
"type": "interim",
"title": "Compute the slope of the perpendicular line:$${\\quad}m_{p}=\\frac{1}{15}$$",
"steps": [
{
"type": "step",
"primary": "The perpendicular slope is the negative reciprocal of the given slope"
},
{
"type": "interim",
"title": "$$\\left(-15\\right)m_{p}=-1{\\quad:\\quad}m_{p}=\\frac{1}{15}$$",
"input": "\\left(-15\\right)m_{p}=-1",
"steps": [
{
"type": "interim",
"title": "Divide both sides by $$-15$$",
"input": "\\left(-15\\right)m_{p}=-1",
"result": "m_{p}=\\frac{1}{15}",
"steps": [
{
"type": "step",
"primary": "Divide both sides by $$-15$$",
"result": "\\frac{\\left(-15\\right)m_{p}}{-15}=\\frac{-1}{-15}"
},
{
"type": "step",
"primary": "Simplify",
"result": "m_{p}=\\frac{1}{15}"
}
],
"meta": {
"interimType": "Divide Both Sides Specific 1Eq",
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"meta": {
"solvingClass": "Equations",
"interimType": "Equations"
}
},
{
"type": "step",
"result": "m_{p}=\\frac{1}{15}"
}
],
"meta": {
"interimType": "Line Equation Slope Perpendicular 0Eq"
}
},
{
"type": "interim",
"title": "Find the line with slope m=$$\\frac{1}{15}$$ and passing through $$\\left(-2,\\:10\\right):{\\quad}y=\\frac{1}{15}x+\\frac{152}{15}$$",
"steps": [
{
"type": "step",
"primary": "Compute the line equation $$\\mathbf{y=mx+b}$$ for slope m=$$\\frac{1}{15}$$ and passing through $$\\left(-2,\\:10\\right)$$"
},
{
"type": "interim",
"title": "Compute the $$y$$ intercept:$${\\quad}b=\\frac{152}{15}$$",
"steps": [
{
"type": "step",
"primary": "Plug the slope $$\\frac{1}{15}$$ into $$y=mx+b$$",
"result": "y=\\frac{1}{15}x+b"
},
{
"type": "step",
"primary": "Plug in $$\\left(-2,\\:10\\right)$$: $$\\quad\\:x=-2,\\:y=10$$",
"result": "10=\\frac{1}{15}\\left(-2\\right)+b"
},
{
"type": "step",
"primary": "Isolate $$b$$"
},
{
"type": "interim",
"title": "$$10=\\frac{1}{15}\\left(-2\\right)+b{\\quad:\\quad}b=\\frac{152}{15}$$",
"input": "10=\\frac{1}{15}\\left(-2\\right)+b",
"steps": [
{
"type": "step",
"primary": "Switch sides",
"result": "\\frac{1}{15}\\left(-2\\right)+b=10"
},
{
"type": "step",
"primary": "Remove parentheses: $$\\left(-a\\right)=-a$$",
"result": "-\\frac{1}{15}\\cdot\\:2+b=10"
},
{
"type": "interim",
"title": "$$\\frac{1}{15}\\cdot\\:2=\\frac{2}{15}$$",
"input": "\\frac{1}{15}\\cdot\\:2",
"steps": [
{
"type": "step",
"primary": "Multiply fractions: $$a\\cdot\\frac{b}{c}=\\frac{a\\:\\cdot\\:b}{c}$$",
"result": "=\\frac{1\\cdot\\:2}{15}"
},
{
"type": "step",
"primary": "Multiply the numbers: $$1\\cdot\\:2=2$$",
"result": "=\\frac{2}{15}"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Solver",
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},
{
"type": "step",
"result": "-\\frac{2}{15}+b=10"
},
{
"type": "interim",
"title": "Move $$\\frac{2}{15}\\:$$to the right side",
"input": "-\\frac{2}{15}+b=10",
"result": "b=\\frac{152}{15}",
"steps": [
{
"type": "step",
"primary": "Add $$\\frac{2}{15}$$ to both sides",
"result": "-\\frac{2}{15}+b+\\frac{2}{15}=10+\\frac{2}{15}"
},
{
"type": "interim",
"title": "Simplify",
"input": "-\\frac{2}{15}+b+\\frac{2}{15}=10+\\frac{2}{15}",
"result": "b=\\frac{152}{15}",
"steps": [
{
"type": "interim",
"title": "Simplify $$-\\frac{2}{15}+b+\\frac{2}{15}:{\\quad}b$$",
"input": "-\\frac{2}{15}+b+\\frac{2}{15}",
"steps": [
{
"type": "step",
"primary": "Add similar elements: $$-\\frac{2}{15}+\\frac{2}{15}=0$$"
},
{
"type": "step",
"result": "=b"
}
],
"meta": {
"interimType": "Generic Simplify Specific 1Eq"
}
},
{
"type": "interim",
"title": "Simplify $$10+\\frac{2}{15}:{\\quad}\\frac{152}{15}$$",
"input": "10+\\frac{2}{15}",
"steps": [
{
"type": "step",
"primary": "Convert element to fraction: $$10=\\frac{10\\cdot\\:15}{15}$$",
"result": "=\\frac{10\\cdot\\:15}{15}+\\frac{2}{15}"
},
{
"type": "step",
"primary": "Since the denominators are equal, combine the fractions: $$\\frac{a}{c}\\pm\\frac{b}{c}=\\frac{a\\pm\\:b}{c}$$",
"result": "=\\frac{10\\cdot\\:15+2}{15}"
},
{
"type": "interim",
"title": "$$10\\cdot\\:15+2=152$$",
"input": "10\\cdot\\:15+2",
"steps": [
{
"type": "step",
"primary": "Multiply the numbers: $$10\\cdot\\:15=150$$",
"result": "=150+2"
},
{
"type": "step",
"primary": "Add the numbers: $$150+2=152$$",
"result": "=152"
}
],
"meta": {
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},
{
"type": "step",
"result": "=\\frac{152}{15}"
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}
},
{
"type": "step",
"result": "b=\\frac{152}{15}"
}
],
"meta": {
"interimType": "Generic Simplify 0Eq"
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}
],
"meta": {
"interimType": "Move to the Right Title 1Eq",
"gptData": "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"
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},
{
"type": "step",
"result": "b=\\frac{152}{15}"
}
],
"meta": {
"interimType": "Line Equation Find Intersection From Point 0Eq"
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},
{
"type": "step",
"primary": "Construct the line equation $$\\mathbf{y=mx+b}$$ where $$\\mathbf{m}=\\frac{1}{15}$$ and $$\\mathbf{b}=\\frac{152}{15}$$",
"result": "y=\\frac{1}{15}x+\\frac{152}{15}"
}
],
"meta": {
"interimType": "Line Equation Slope Point 6Eq"
}
},
{
"type": "step",
"result": "y=\\frac{1}{15}x+\\frac{152}{15}"
}
],
"meta": {
"solvingClass": "PreCalc"
}
},
"plot_output": {
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"evalFormula": "y=x^{2}-x^{3}+x",
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"attributes": {
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"lineType": "NORMAL",
"isAsymptote": false
}
},
{
"evalFormula": "y=\\frac{x+152}{15}",
"displayFormula": "y=\\frac{x+152}{15}",
"attributes": {
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"lineType": "NORMAL",
"isAsymptote": false
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"plotTitle": "y=x^{2}-x^{3}+x, y=\\frac{1}{15}x+\\frac{152}{15}",
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"localBoundingBox": {
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Solution
normal of
Solution
Solution steps
Find the slope of
Compute the slope of the perpendicular line:
Find the line with slope m= and passing through
Graph
Popular Examples
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Frequently Asked Questions (FAQ)
What is the normal of y=x^2-x^3+x,(-2,10) ?
The normal of y=x^2-x^3+x,(-2,10) is y= 1/15 x+152/15