# To draw : a graph by using a graphing calculator. ### 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 2.3, Problem 14E

a.

To determine

## To draw: a graph by using a graphing calculator.

Expert Solution

### Explanation of Solution

Given information: consider the provided function,

f(x)=x2+4

Graph:

Step 1: Open Graphing Calculator from the start menu.

Step 2: Click on the input box and enter the function provided f(x)=x2+4

Step 3: Press Enter.

Hence, the graph so obtained is, b.

To determine

### the domain and the range from the graph

Expert Solution

the domain from the graph is [,] and the range from the graph is [4,] .

### Explanation of Solution

Given information: consider the graph obtained in part a., Calculation:

The domain of the function f is all the x-values of the points on the graph, and the range is all the corresponding y -values.

From the graph, the function cuts the y -axis at y = 4 and covers the graph till , therefore, the range is [4,] . The function covers the graph from x= to x= , therefore, the domain is [,]

Hence, the domain from the graph is [,] and the range from the graph is [4,] .

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