Question

A construction crew is lengthening a road. Let be the total length of the road (in miles)Let be the number of days the crew has worked. Suppose that L = 2D + 300 gives as a function of D. The crew can work for at most days. Identify the correct description of the values in both the domain and range of the functionThen, for eachchoose the most appropriate set of values

Answer 1

Answer:

• Domain: The set of all real numbers from 0 to 60

,

• Range: The set of all real numbers from 300 to 420

Explanation:

Given the function:

L = 2D + 300

Since the highest number of days the crew can work is 60, we have the highest Length of the road to be:

L = 2(6) + 320 = 420

The domain is the number of days the crew has worked, which is the set of all real numbers from 0 to 60

The range the length of the road in miles, which is the set of all real numbers from 300 to 420