Chapter 8, Problem 5MCQ

To determine

To graph:

The given equations. Tell whether each equation is a function.

Answer to Problem 5MCQ

The equation $y=-1$ is a function.

Explanation of Solution

Given:

An equation:

  $y=-1$

Calculation:

We can see that our given equation represents a horizontal line.

Upon graphing $y=-1$ , we will get our required graph as shown below:

  

We can see that no vertical line will intersect the graph of equation $y=-1$ more than one place that is each x value corresponds to a specific y-value.

Therefore, the equation $y=-1$ is a function.