{
"query": {
"display": "domain $$\\frac{2x+1}{x-1}$$",
"symbolab_question": "FUNCTION#domain \\frac{2x+1}{x-1}"
},
"solution": {
"level": "PERFORMED",
"subject": "Functions & Graphing",
"topic": "Functions",
"subTopic": "domain",
"default": "x<1\\lor x>1",
"interval": "(-\\infty ,1)\\cup (1,\\infty )",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Domain of $$\\frac{2x+1}{x-1}\\::{\\quad}x<1\\lor\\:x>1$$",
"steps": [
{
"type": "definition",
"title": "Domain definition",
"text": "The domain of a function is the set of input or argument values for which the function is real and defined"
},
{
"type": "interim",
"title": "Find undefined (singularity) points:$${\\quad}x=1$$",
"input": "\\frac{2x+1}{x-1}",
"steps": [
{
"type": "step",
"primary": "Take the denominator(s) of $$\\frac{2x+1}{x-1}$$ and compare to zero"
},
{
"type": "interim",
"title": "Solve $$x-1=0:{\\quad}x=1$$",
"input": "x-1=0",
"steps": [
{
"type": "interim",
"title": "Move $$1\\:$$to the right side",
"input": "x-1=0",
"result": "x=1",
"steps": [
{
"type": "step",
"primary": "Add $$1$$ to both sides",
"result": "x-1+1=0+1"
},
{
"type": "step",
"primary": "Simplify",
"result": "x=1"
}
],
"meta": {
"interimType": "Move to the Right Title 1Eq",
"gptData": "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"
}
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Generic Solve Title 1Eq"
}
},
{
"type": "step",
"primary": "The following points are undefined",
"result": "x=1"
}
],
"meta": {
"interimType": "Undefined Points 0Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7yzmeFdjgvhQTm0mwfI9L6qeleDCPJEbWT6Sefn16GIgmKC85IyXQZuYnMoY1uq+DmxhhvhGPdXDo331HaiBP/D8v81YuLPtaVdgnKLSZ5mfGGa871gItIFrU3m71GZbJeqXxdc+rps1CUyb7fqI2GeNdMUZEa0oRZcGEhWpGBVTIiZ+gAqC183B3PyLTCJX4iO/UtL46KHKVIVkdaLuvkA=="
}
},
{
"type": "step",
"primary": "The function domain",
"result": "x<1\\lor\\:x>1"
}
],
"meta": {
"solvingClass": "Function Domain"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"plotRequest": "\\frac{2x+1}{x-1}"
},
"showViewLarger": true
}
},
"meta": {
"showVerify": true
}
}
Solution
domain
Solution
+1
Interval Notation
Solution steps
Find undefined (singularity) points:
The function domain
Graph
Popular Examples
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Frequently Asked Questions (FAQ)
What is the domain of (2x+1)/(x-1) ?
The domain of (2x+1)/(x-1) is x<1\lor x>1