# What is the equation of a vertical line?

### 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 1, Problem 30RCC

a.

To determine

## What is the equation of a vertical line?

Expert Solution

x=a

### Explanation of Solution

Given information:

What is the equation of a vertical line?

Calculation:

The point on vertical line has same value of x -coordinate and take on all different value of y -coordinates. Since the line extends to infinity in both directions, there is no restriction on the y -coordinate.

If a vertical line is located at points with x -coordinate of a then the equation is,

x=a

Hence, the equation of a vertical line is x=a

b.

To determine

Expert Solution

y=a

### Explanation of Solution

Given information:

What is the equation of a horizontal line?

Calculation:

The point on horizontal line has all different value of x -coordinate and take on same value of y -coordinates. Since the line extends to infinity in both directions, there is no restriction on the x -coordinate.

If a horizontal line is located at points with y -coordinate of a then the equation is,

y=a

Hence, the equation of a horizontal line is y=a

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