# The curve is function or not &amp; the domain and range of the function.

### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 2.2, Problem 55E
To determine

## To find : The curve is function or not & the domain and range of the function.

Expert Solution

The curve of the graph is the function of x and here the domain is (13) and the range is (33) .

### Explanation of Solution

Given information :

Concept used : A curve in the coordinate plane is the graph of a function if and only if no vertical line intersects the curve more than once.

The domain is the set of X coordinate and the range is the set of Y coordinate of any graph.

No vertical line intersects the curve of the graph more than once, hence the curves of the graph is the function of x .

So, here the domain is (13) and the range is (33) .

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