Question

The house-numbers on a certain street go from 111 to 888888. The function B(n)B(n)B, left parenthesis, n, right parenthesis models the type of the building whose number is nnn according to the following key: Building type Function output Residential building 000 Commercial building 111 Government building 222 Other 333 Which number type is more appropriate for the domain of BBB? Choose 1 answer: Choose 1 answer:

(Choice A) A Integers
(Choice B) B Real numbers

Answer 1

The appropriate number type for the function B(n), which models building types based on house numbers, is integers, matching how house numbers are typically assigned.

Step-by-step explanation:

The number type more appropriate for the domain of the function B(n) is integers. Since house numbers are whole numbers and there are no fractional or decimal house numbers, real numbers would not be suitable for the domain of B(n). When considering B(n) as a function that assigns a building type to a given house number n, only integers within the range of 111 to 888888 are relevant. This aligns with how we understand house numbers, which are typically assigned as consecutive whole numbers without any gaps that would necessitate the use of real numbers.