{
"query": {
"display": "inverse $$f\\left(x\\right)=\\frac{6x+4}{x-1}$$",
"symbolab_question": "FUNCTION#inverse f(x)=\\frac{6x+4}{x-1}"
},
"solution": {
"level": "PERFORMED",
"subject": "Functions & Graphing",
"topic": "Functions",
"subTopic": "inverse",
"default": "\\frac{4+x}{x-6}",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Inverse of $$\\frac{6x+4}{x-1}:{\\quad}\\frac{4+x}{x-6}$$",
"steps": [
{
"type": "definition",
"title": "Function Inverse definition",
"text": "A function g is the inverse of function f if for $$y=f\\left(x\\right),\\:\\:x=g\\left(y\\right)\\:$$"
},
{
"type": "step",
"result": "y=\\frac{6x+4}{x-1}"
},
{
"type": "interim",
"title": "Replace $$x\\:$$with $$y$$",
"input": "y=\\frac{6x+4}{x-1}",
"result": "x=\\frac{6y+4}{y-1}",
"steps": [
{
"type": "step",
"primary": "Replace $$x\\:$$with $$y$$",
"secondary": [
"Replace $$y\\:$$with $$x$$"
],
"result": "x=\\frac{6y+4}{y-1}"
}
],
"meta": {
"interimType": "Interchange Variables 2Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7vpqcDD/7yX5Tbd9fO9JFZflKb+oE8YY1V5eRRX8iWLZqBnuJ6LoqjdABV7VIPgGrGQmYVIcZpIrwEyqT9Afp8/wjxGUyXxWBxRqXMq0bSOpN5Aod6Hr1Lp2e/29KhSgUmjqleygtlSszoezKDjz2k7GJwpZAgCxm4WPlcU4xj5k="
}
},
{
"type": "interim",
"title": "Solve for $$y,\\:x=\\frac{6y+4}{y-1}$$",
"input": "x=\\frac{6y+4}{y-1}",
"steps": [
{
"type": "interim",
"title": "Multiply both sides by $$y-1$$",
"input": "x=\\frac{6y+4}{y-1}",
"result": "x\\left(y-1\\right)=6y+4",
"steps": [
{
"type": "step",
"primary": "Multiply both sides by $$y-1$$",
"result": "x\\left(y-1\\right)=\\frac{6y+4}{y-1}\\left(y-1\\right)"
},
{
"type": "step",
"primary": "Simplify",
"result": "x\\left(y-1\\right)=6y+4"
}
],
"meta": {
"interimType": "Multiply Both Sides Specific 1Eq",
"gptData": "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"
}
},
{
"type": "interim",
"title": "Expand $$x\\left(y-1\\right):{\\quad}xy-x$$",
"input": "x\\left(y-1\\right)",
"steps": [
{
"type": "step",
"primary": "Apply the distributive law: $$a\\left(b-c\\right)=ab-ac$$",
"secondary": [
"$$a=x,\\:b=y,\\:c=1$$"
],
"result": "=xy-x\\cdot\\:1",
"meta": {
"practiceLink": "/practice/expansion-practice",
"practiceTopic": "Expand Rules"
}
},
{
"type": "step",
"result": "=xy-1\\cdot\\:x"
},
{
"type": "step",
"primary": "Multiply: $$1\\cdot\\:x=x$$",
"result": "=xy-x"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Generic Expand Specific 1Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7OFqCkI9WIzzlAz4kmV7GyAsBmUOGgB0VAXoAXik9qC9EoApuujwRq/Ms3wa4gNT89ZVSO0B13oSpK+zJfqv7kB7MWKURN+43KCOzRc+RXaGuSZBSS2yDJsYvLH1YSvDL"
}
},
{
"type": "step",
"result": "xy-x=6y+4"
},
{
"type": "interim",
"title": "Move $$x\\:$$to the right side",
"input": "xy-x=6y+4",
"result": "xy=6y+4+x",
"steps": [
{
"type": "step",
"primary": "Add $$x$$ to both sides",
"result": "xy-x+x=6y+4+x"
},
{
"type": "step",
"primary": "Simplify",
"result": "xy=6y+4+x"
}
],
"meta": {
"interimType": "Move to the Right Title 1Eq",
"gptData": "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"
}
},
{
"type": "interim",
"title": "Move $$6y\\:$$to the left side",
"input": "xy=6y+4+x",
"result": "xy-6y=4+x",
"steps": [
{
"type": "step",
"primary": "Subtract $$6y$$ from both sides",
"result": "xy-6y=6y+4+x-6y"
},
{
"type": "step",
"primary": "Simplify",
"result": "xy-6y=4+x"
}
],
"meta": {
"interimType": "Move to the Left Title 1Eq",
"gptData": "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"
}
},
{
"type": "interim",
"title": "Factor $$xy-6y:{\\quad}y\\left(x-6\\right)$$",
"input": "xy-6y",
"steps": [
{
"type": "step",
"primary": "Factor out common term $$y$$",
"result": "=y\\left(x-6\\right)",
"meta": {
"practiceLink": "/practice/factoring-practice",
"practiceTopic": "Factoring"
}
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Algebraic Manipulation Factor Title 1Eq"
}
},
{
"type": "step",
"result": "y\\left(x-6\\right)=4+x"
},
{
"type": "interim",
"title": "Divide both sides by $$x-6$$",
"input": "y\\left(x-6\\right)=4+x",
"result": "y=\\frac{4+x}{x-6}",
"steps": [
{
"type": "step",
"primary": "Divide both sides by $$x-6$$",
"result": "\\frac{y\\left(x-6\\right)}{x-6}=\\frac{4}{x-6}+\\frac{x}{x-6}"
},
{
"type": "interim",
"title": "Simplify",
"input": "\\frac{y\\left(x-6\\right)}{x-6}=\\frac{4}{x-6}+\\frac{x}{x-6}",
"result": "y=\\frac{4+x}{x-6}",
"steps": [
{
"type": "interim",
"title": "Simplify $$\\frac{y\\left(x-6\\right)}{x-6}:{\\quad}y$$",
"input": "\\frac{y\\left(x-6\\right)}{x-6}",
"steps": [
{
"type": "step",
"primary": "Cancel the common factor: $$x-6$$",
"result": "=y"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Generic Simplify Specific 1Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7zppuIXBvQKDfWT1PgVYs7CtnUVqEfJvJUBbvsfHyLBdwkKGJWEPFPk38sdJMsyPInHO1P233i4EtfogZ/YR6Lu5AIz++qluupTlLFEcE9J3MqC2o5jpJnUXV8Cdbf9HZL3IkjEzOZNjiqjDGMoOoIw=="
}
},
{
"type": "interim",
"title": "Simplify $$\\frac{4}{x-6}+\\frac{x}{x-6}:{\\quad}\\frac{4+x}{x-6}$$",
"input": "\\frac{4}{x-6}+\\frac{x}{x-6}",
"steps": [
{
"type": "step",
"primary": "Apply rule $$\\frac{a}{c}\\pm\\frac{b}{c}=\\frac{a\\pm\\:b}{c}$$",
"result": "=\\frac{4+x}{x-6}"
}
],
"meta": {
"solvingClass": "Solver",
"interimType": "Generic Simplify Specific 1Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7CACch03H7hQyGTE/YtBTb9bQUyP6CjpmDPjnrstOHi4tOtZYwUjyXhDTsNnn6ElrSGpx9e3Lolh3WlYiBDdmOOGvTxUHQPiNgp2OXQSH+mzvbBmbuQNTF0TphKZ8Ruva8pOMITYik9N8AtIc49Ww1TomfVbHNvyXbQ4i0nlYI4mMtcOqMK7UZsbazYWDTAvL"
}
},
{
"type": "step",
"result": "y=\\frac{4+x}{x-6}"
}
],
"meta": {
"interimType": "Generic Simplify 0Eq"
}
}
],
"meta": {
"interimType": "Divide Both Sides Specific 1Eq",
"gptData": "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"
}
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Generic Solve For Title 2Eq"
}
},
{
"type": "step",
"result": "\\frac{4+x}{x-6}"
}
],
"meta": {
"solvingClass": "Function Inverse"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"plotRequest": "\\frac{6x+4}{x-1}"
},
"showViewLarger": true
}
},
"meta": {
"showVerify": true
}
}
Solution
inverse
Solution
Solution steps
Replace with
Solve for
Graph
Popular Examples
domain of f(x)= 1/(sqrt(6x-12))domain domain of (7x)/(5+3x)domain monotone x^3-x^2+2x-1monotone intervals critical f(x)=6t^{2/3}+t^{5/3}critical points periodicity of f(x)=2cos(pix)periodicity
Frequently Asked Questions (FAQ)
What is the inverse of f(x)=(6x+4)/(x-1) ?
The inverse of f(x)=(6x+4)/(x-1) is (4+x)/(x-6)