# The graph of the function f ( x ) = x + 12 x − 6 .

### 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 2.7, Problem 67E
To determine

## To sketch: The graph of the function f(x)=x+12x−6 .

Expert Solution

### Explanation of Solution

Given information: f(x)=x+12x6 .

Graph:

 x 0 2 4 3 10 f(x) -2 -3.5 -8 -5 5.5

Interpretation:

The horizontal line test is a method that can be used to determine if a function is a one-to-one function. This means that, for every y-value in the function, there is only one unique x-value.

So, it is clear from the graph that the horizontal line cuts only once the graph.

Thus is a one-to-one graph.

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