Start your trial now! First week only $4.99!*arrow_forward*

BuyFind*launch*

6th Edition

Stewart + 5 others

Publisher: Cengage Learning

ISBN: 9780840068071

Chapter 2.1, Problem 76E

(a)

To determine

**To find:** The value of function

Expert Solution

Income tax at

The given function is,

Function for income 5,000 is,

So, income tax at

Function for income 12,000 is,

Substitute
* x* in the above function to find the value of

So, income tax at

Function for income 20,000 is,

Substitute
*x* in the above function to find the value of

So, income tax at

Hence, income tax at

(b)

To determine

**To Explain:** Answer represented in part (a).

Expert Solution

Income tax is increasing simultaneously with income.

From part (a),

Income tax at

Income tax is increasing simultaneously with income.