{
"query": {
"display": "domain $$\\frac{7x}{5+3x}$$",
"symbolab_question": "FUNCTION#domain \\frac{7x}{5+3x}"
},
"solution": {
"level": "PERFORMED",
"subject": "Functions & Graphing",
"topic": "Functions",
"subTopic": "domain",
"default": "x<-\\frac{5}{3}\\lor x>-\\frac{5}{3}",
"interval": "(-\\infty ,-\\frac{5}{3})\\cup (-\\frac{5}{3},\\infty )",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Domain of $$\\frac{7x}{5+3x}\\::{\\quad}x<-\\frac{5}{3}\\lor\\:x>-\\frac{5}{3}$$",
"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:$${\\quad}x=-\\frac{5}{3}$$",
"input": "\\frac{7x}{5+3x}",
"steps": [
{
"type": "step",
"primary": "Take the denominator(s) of $$\\frac{7x}{5+3x}$$ and compare to zero"
},
{
"type": "interim",
"title": "Solve $$5+3x=0:{\\quad}x=-\\frac{5}{3}$$",
"input": "5+3x=0",
"steps": [
{
"type": "interim",
"title": "Move $$5\\:$$to the right side",
"input": "5+3x=0",
"result": "3x=-5",
"steps": [
{
"type": "step",
"primary": "Subtract $$5$$ from both sides",
"result": "5+3x-5=0-5"
},
{
"type": "step",
"primary": "Simplify",
"result": "3x=-5"
}
],
"meta": {
"interimType": "Move to the Right Title 1Eq",
"gptData": "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"
}
},
{
"type": "interim",
"title": "Divide both sides by $$3$$",
"input": "3x=-5",
"result": "x=-\\frac{5}{3}",
"steps": [
{
"type": "step",
"primary": "Divide both sides by $$3$$",
"result": "\\frac{3x}{3}=\\frac{-5}{3}"
},
{
"type": "step",
"primary": "Simplify",
"result": "x=-\\frac{5}{3}"
}
],
"meta": {
"interimType": "Divide Both Sides Specific 1Eq",
"gptData": "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"
}
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Generic Solve Title 1Eq"
}
},
{
"type": "step",
"primary": "The following points are undefined",
"result": "x=-\\frac{5}{3}"
}
],
"meta": {
"interimType": "Undefined Points 0Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7yzmeFdjgvhQTm0mwfI9L6ocFLSGAzzjjy2VnK9x0onyXkroQM2YgsjGnOiDXPf01nBFeWrgRJMXuH/85lf1j/JKdriiCv9ZiECl6FT7v91CPfxi6PFTq1Sy+8pWTD/50TeQKHeh69S6dnv9vSoUoFKObI2tXvUGQYT0L6wdpcOiJGB1AkhCJy5xKRnb/nUvuTJPvfJZfrYPC3p72Ab9Sgg=="
}
},
{
"type": "step",
"primary": "The function domain",
"result": "x<-\\frac{5}{3}\\lor\\:x>-\\frac{5}{3}"
}
],
"meta": {
"solvingClass": "Function Domain"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"plotRequest": "\\frac{7x}{5+3x}"
},
"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 (7x)/(5+3x) ?
The domain of (7x)/(5+3x) is x<-5/3 \lor x>-5/3