Question

Given f as described below.

f: {whole numbers} → {whole numbers}
Assign each whole number to its largest place value digit.
For example, f(4) = 4, f(14) = 4, and f(194) = 9
b. What is f(257)?

Answer 1

7

Explanation:

We are given that a function

`f:W\rightarrow W`

Domain=W(whole numbers set)

Range=W(Whole number set)

Assign each whole number to its largest place value digit.

We have to find the value of f(257).

For example

f(4)=4

f(14)=4

f(194)=9

Therefore, f(257)=7 because largest place value digit is 7 in 257.