# The function y = x by hand without plotting any points and then graph of the function y = 2 x + 1 . ### Single Variable Calculus: Concepts...

4th Edition
James Stewart
Publisher: Cengage Learning
ISBN: 9781337687805 ### Single Variable Calculus: Concepts...

4th Edition
James Stewart
Publisher: Cengage Learning
ISBN: 9781337687805

#### Solutions

Chapter 1.3, Problem 14E
To determine

## To sketch: The function y=x by hand without plotting any points and then graph of the function y=2x+1 .

Expert Solution

### Explanation of Solution

The standard graph of the function y=x is roughly drawn as shown below in Figure 1. Then, draw the graph of y=x+1 , by shift the graph y=x by 1 unit left. Thus, the graph of y=x+1 is shown below in Figure 2. From Figure 2, it is observed that Figure 1 is shifted 1 unit to the left.

To draw the graph of y=2x+1 , stretch the graph y=x+1 vertically by a factor of 2. Thus, the graph of y=2x+1 is shown below in Figure 3. Observe that Figure 3is obtainedfrom Figure 1 in such a way that it is shifted 1 unit to the left and then stretched vertically by a factor of 2.

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