A few days ago
i have a pre calculus question?
I need to know if the following equation represents y as a function of x.
y = square root of (x + 5)
Top 2 Answers
A few days ago
Favorite Answer
Yes, y is a function of x. Meaning for every x there is one and only y.
1
A few days ago
It depends on if “square root” means “principal square root.” In most contexts it does, but technically it might mean there is a positive and negative answer. For example -4 squared is 16 so -4 could be considered a square root of 16 just like 4 is, making it NOT a function. But if you can safely assume it means principal square root (the non-negative root only) then yes it is a function. For what it’s worth, see wikipedia: http://en.wikipedia.org/wiki/Square_root
0
- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles