{
"query": {
"display": "line $$\\left(4,\\:2\\right),\\:\\left(-3,\\:1\\right)$$",
"symbolab_question": "PRE_CALC#line (4,2),(-3,1)"
},
"solution": {
"level": "PERFORMED",
"subject": "Functions & Graphing",
"topic": "Line Equations",
"subTopic": "Line",
"default": "y=\\frac{1}{7}x+\\frac{10}{7}",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Line passing through $$\\left(4,\\:2\\right)$$, $$\\left(-3,\\:1\\right):{\\quad}y=\\frac{1}{7}x+\\frac{10}{7}$$",
"steps": [
{
"type": "step",
"primary": "Find the line $$\\mathbf{y=mx+b}$$ passing through $$\\left(4,\\:2\\right)$$, $$\\left(-3,\\:1\\right)$$"
},
{
"type": "interim",
"title": "Compute the slope $$\\left(4,\\:2\\right),\\:\\left(-3,\\:1\\right):{\\quad}m=\\frac{1}{7}$$",
"steps": [
{
"type": "step",
"primary": "Slope between two points: Slope$$=\\frac{y_2-y_1}{x_2-x_1}$$",
"secondary": [
"$$\\left(x_1,\\:y_1\\right)=\\left(4,\\:2\\right),\\:\\left(x_2,\\:y_2\\right)=\\left(-3,\\:1\\right)$$"
],
"result": "m=\\frac{1-2}{-3-4}"
},
{
"type": "step",
"primary": "Refine",
"result": "m=\\frac{1}{7}"
}
],
"meta": {
"interimType": "Slope Two Points Top Level 4Eq"
}
},
{
"type": "interim",
"title": "Compute the $$y$$ intercept:$${\\quad}b=\\frac{10}{7}$$",
"steps": [
{
"type": "step",
"primary": "Plug the slope $$\\frac{1}{7}$$ into $$y=mx+b$$",
"result": "y=\\frac{1}{7}x+b"
},
{
"type": "step",
"primary": "Plug in $$\\left(4,\\:2\\right)$$: $$\\quad\\:x=4,\\:y=2$$",
"result": "2=\\frac{1}{7}\\cdot\\:4+b"
},
{
"type": "step",
"primary": "Isolate $$b$$"
},
{
"type": "interim",
"title": "$$2=\\frac{1}{7}\\cdot\\:4+b{\\quad:\\quad}b=\\frac{10}{7}$$",
"input": "2=\\frac{1}{7}\\cdot\\:4+b",
"steps": [
{
"type": "step",
"primary": "Switch sides",
"result": "\\frac{1}{7}\\cdot\\:4+b=2"
},
{
"type": "interim",
"title": "$$\\frac{1}{7}\\cdot\\:4=\\frac{4}{7}$$",
"input": "\\frac{1}{7}\\cdot\\:4",
"steps": [
{
"type": "step",
"primary": "Multiply fractions: $$a\\cdot\\frac{b}{c}=\\frac{a\\:\\cdot\\:b}{c}$$",
"result": "=\\frac{1\\cdot\\:4}{7}"
},
{
"type": "step",
"primary": "Multiply the numbers: $$1\\cdot\\:4=4$$",
"result": "=\\frac{4}{7}"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Solver",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7yGAHtoIDA1Tjh1HgZg+xL3p/BfzjvyNsWYj19qC8W+Crju+5Z51e/ZZSD3gRHwjB2w6Kfheb+lc+OoBmPSEC7mRLd2VwIqlBNByF6663syTQ4mLazZd24WQSmr6qmW36kPql8RlT7+zyODS9swnBPLCI2sSeA74029n2yo277ZU="
}
},
{
"type": "step",
"result": "\\frac{4}{7}+b=2"
},
{
"type": "interim",
"title": "Move $$\\frac{4}{7}\\:$$to the right side",
"input": "\\frac{4}{7}+b=2",
"result": "b=\\frac{10}{7}",
"steps": [
{
"type": "step",
"primary": "Subtract $$\\frac{4}{7}$$ from both sides",
"result": "\\frac{4}{7}+b-\\frac{4}{7}=2-\\frac{4}{7}"
},
{
"type": "interim",
"title": "Simplify",
"input": "\\frac{4}{7}+b-\\frac{4}{7}=2-\\frac{4}{7}",
"result": "b=\\frac{10}{7}",
"steps": [
{
"type": "interim",
"title": "Simplify $$\\frac{4}{7}+b-\\frac{4}{7}:{\\quad}b$$",
"input": "\\frac{4}{7}+b-\\frac{4}{7}",
"steps": [
{
"type": "step",
"primary": "Add similar elements: $$\\frac{4}{7}-\\frac{4}{7}=0$$"
},
{
"type": "step",
"result": "=b"
}
],
"meta": {
"interimType": "Generic Simplify Specific 1Eq"
}
},
{
"type": "interim",
"title": "Simplify $$2-\\frac{4}{7}:{\\quad}\\frac{10}{7}$$",
"input": "2-\\frac{4}{7}",
"steps": [
{
"type": "step",
"primary": "Convert element to fraction: $$2=\\frac{2\\cdot\\:7}{7}$$",
"result": "=\\frac{2\\cdot\\:7}{7}-\\frac{4}{7}"
},
{
"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{2\\cdot\\:7-4}{7}"
},
{
"type": "interim",
"title": "$$2\\cdot\\:7-4=10$$",
"input": "2\\cdot\\:7-4",
"steps": [
{
"type": "step",
"primary": "Multiply the numbers: $$2\\cdot\\:7=14$$",
"result": "=14-4"
},
{
"type": "step",
"primary": "Subtract the numbers: $$14-4=10$$",
"result": "=10"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Solver",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7lbPF8zzq98jHtLgkSVtrS96GQqufR6tr2vPxOUv7H+8Khqe7+dajLA9h/DZSrCk/lEd8bz72O1EcTNHc6v8UnTB1Xqu/85fAvmEWTh0I6nw="
}
},
{
"type": "step",
"result": "=\\frac{10}{7}"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Generic Simplify Specific 1Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s75Jr7BP9+pdCeV7irHD64OACWKUbvV6WK3fDUgFtg3Q/ysS6ztOAKKFAEXmiY4WQmtMa+mfHJicgKoDyxJOYJOPC30sSftAIFS6Qkpy19Ikq76BZgUbAMdjd/rQeVX/4Yftyjy44UeUpwgJRweL56jg=="
}
},
{
"type": "step",
"result": "b=\\frac{10}{7}"
}
],
"meta": {
"interimType": "Generic Simplify 0Eq"
}
}
],
"meta": {
"interimType": "Move to the Right Title 1Eq",
"gptData": "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"
}
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Equations"
}
},
{
"type": "step",
"result": "b=\\frac{10}{7}"
}
],
"meta": {
"interimType": "Line Equation Find Intersection From Point 0Eq"
}
},
{
"type": "step",
"primary": "Construct the line equation $$\\mathbf{y=mx+b}$$ where $$\\mathbf{m}=\\frac{1}{7}$$ and $$\\mathbf{b}=\\frac{10}{7}$$",
"result": "y=\\frac{1}{7}x+\\frac{10}{7}"
}
],
"meta": {
"solvingClass": "PreCalc"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"funcsToDraw": {
"funcs": [
{
"evalFormula": "y=\\frac{x+10}{7}",
"displayFormula": "y=\\frac{1}{7}x+\\frac{10}{7}",
"derivativeFormula": "\\frac{1}{7}",
"attributes": {
"color": "PURPLE",
"lineType": "NORMAL",
"isAsymptote": false
}
}
]
},
"pointsToDraw": {
"pointsLatex": [
"(4,2)",
"(-3,1)"
],
"pointsDecimal": [
{
"fst": 4,
"snd": 2
},
{
"fst": -3,
"snd": 1
}
],
"attributes": [
{
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"labels": [
null
],
"labelTypes": [
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],
"labelColors": [
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},
{
"color": "BLACK",
"labels": [
null
],
"labelTypes": [
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"labelColors": [
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}
]
},
"functionChanges": [
{
"origFormulaLatex": [
"\\frac{1}{7}x+\\frac{10}{7}"
],
"finalFormulaLatex": [
"\\frac{x+10}{7}"
],
"plotTitle": "y=\\frac{1}{7}x+\\frac{10}{7}",
"paramsLatex": [],
"paramsReplacementsLatex": []
}
],
"localBoundingBox": {
"xMin": -38.16,
"xMax": 29.159999999999997,
"yMin": -2.7894285714285716,
"yMax": 4.060857142857143
}
},
"showViewLarger": true
}
},
"meta": {
"showVerify": true
}
}
Solution
line
Solution
Solution steps
Find the line passing through ,
Compute the slope
Compute the intercept:
Construct the line equation where and
Graph
Popular Examples
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Frequently Asked Questions (FAQ)
What is the line (4,2),(-3,1) ?
The line (4,2),(-3,1) is y= 1/7 x+10/7