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# Consider these functions from the set of students in a ISBN: 9780073383095 37

## Solution for problem 16E Chapter 2.3

Discrete Mathematics and Its Applications | 7th Edition

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Problem 16E

Consider these functions from the set of students in a discrete mathematics class. Under what conditions is the function one-to-one if it assigns to a student his or her

a) mobile phone number.

b) student identification number.

c) final grade in the class.

d) home town.

Step-by-Step Solution:
Step 1 of 3

Step1

Given that

A functions from the group  of students in a discrete mathematics class.

Step2

To find

We have to find conditions is the function one-to-one if it assigns to a student his or her?

Step3

One -to -One :- A function for which every element of the range of the function corresponds to exactly one element of the domain. We can write one-to-one as 1-1.

a) mobile phone number.

The function is  one-to-one if it assigns to a student his or her mobile phone number.

Condition:- Nobody has similar number.

Step4

b) student identification number.

The...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780073383095

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