Question
The quantity y is inversely proportional to a power of x for x>0.
2hen x=1,y=sqrt 2 and when x=8,y=1/2.
Can somebody solve it .
As here are given two informations and asking for a single equation.
2hen x=1,y=sqrt 2 and when x=8,y=1/2.
Can somebody solve it .
As here are given two informations and asking for a single equation.
Firstly y=k/(x^n) when y=1/2, x = 8 and substitute so,
1/2=k/(8^n) and 2k= 8^n and when y=sqrt2, x=1 so,
sqrt2=k/(1^n)
Thus k = sqrt2 and substitute the value into 2k=8^n To solve for n and thus get your final equation.
1/2=k/(8^n) and 2k= 8^n and when y=sqrt2, x=1 so,
sqrt2=k/(1^n)
Thus k = sqrt2 and substitute the value into 2k=8^n To solve for n and thus get your final equation.
(edited 5 months ago)
Quick Reply
Related discussions
- GCSE Exam Discussions 2024
- A Level Maths Checklist
- Isaac Physics SPC Summer School
- Edexcel English Language Paper 2 advice
- Isaac Senior Physics Challenge 2024
- SQA important question
- a level history corusework
- AQA GCSE English Language Paper 1 (8700/1) - 7th November 2023 [Exam Chat]
- Senior Physics Challenge Isaac Physics
- Isaac Physics Summer Camp
- Question bank national 5 chemistry
- Maths interview prep help
- Home Office AO Role
- Eduqas A-level English Literature Component 1 (A720U10-1) - 24th May 2023 [Exam Chat]
- Senior Physics Challenge 2022
- Maths struggles
- LNAT
- Home Office 'Strength-based interview questions.'
- AQA English Language Paper 1 and 2
- Maths A Level
Latest
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
