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.
d. What is f(999)?

Answer 1

f (999) = 9

Explanation:

As Domain = {all whole numbers}

Range is R = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

then f (999) = 9 which is its largest place value digit.