Posted by **Brian** on Wednesday, January 18, 2012 at 10:30am.

What is the differnce between a range and domain how can I tell if it is a function or non function. I need a real life example Please help!

- Math -
**Henry**, Friday, January 20, 2012 at 7:59am
Domain: All input values that give a

real output are in the domain.

Y = 35 / (x-2).

All values of x except 2 are within the domain, because 2 gives a denominator of 0 which results in an infinite(undefined) output.

Mathematically: 2 > X > 2.

When a vertical line is drawn through a function, it will intersect at only one point. For example, a vertical line

drawn through the graph of an

x-parabola will intersect at 2 points.

Therefore, it is not a function.

A y-parabola is a function, because it will be intersected at only one point by a vertical line.

The range is all outputs resulting from

inputs within the domain. Therefore, the range of the above function is all

values of y that are greater than negative infinity but less than positive infinitive. So the range includes ALL real numbers.

## Answer This Question

## Related Questions

- Algebra - What is the difference between domain and range? Describe a real life ...
- math - Now, think of a set of domain and range from your own life. Write a ...
- math 116 - What is the difference between domain and range? The domain of a ...
- Need Help!! Algebra - I am having trouble in this class and need help with this ...
- 11th grade maths - A.give an example of a function whose domain is {3,4,7,9}? ...
- algebra - Find the domain and range of the relation and determine whether it is ...
- Algebra plz help - 1.Identify the domain and range of the following relation. {(...
- calcius - Determine whether the relation represents a function. If it is a ...
- Algebra - I've learned that the difference between domain and range is........
- 11th grade mths - Please check urgently .I have to submit the assignment A give ...

More Related Questions