College

You have [tex]$\$[/tex] cups of flour. It takes 1 cup of flour to make 24 cookies. The function [tex]$c(f) = 24f$[/tex] represents the number of cookies, [tex]$c$[/tex], that can be made with [tex]$f$[/tex] cups of flour. What domain and range are reasonable for the function? What is the graph of the function?

a. The domain is [tex]$0 \leq c(f) \leq 192$[/tex].
The range is [tex]$0 \leq f \leq 8$[/tex].

b. The domain is [tex]$0 \leq f \leq 8$[/tex].
The range is [tex]$0 \leq c(f) \leq 192$[/tex].

c. The domain is [tex]$24 \leq c(f) \leq 192$[/tex].
The range is [tex]$1 \leq f \leq 8$[/tex].

d. The domain is [tex]$1 \leq f \leq 8$[/tex].
The range is [tex]$24 \leq c(f) \leq 192$[/tex].

Answer :

To solve this problem, we need to determine the reasonable domain and range for the function [tex]\(c(f) = 24f\)[/tex], where [tex]\(c(f)\)[/tex] is the number of cookies and [tex]\(f\)[/tex] is the number of cups of flour.

### Understanding the Function
1. Function Definition: The function [tex]\(c(f) = 24f\)[/tex] indicates that with each cup of flour, you can make 24 cookies.

### Determining the Domain
- The domain refers to the set of possible input values, which in this case, is the number of cups of flour [tex]\(f\)[/tex], and it makes sense to consider flour in non-negative values.
- Given that you have a finite amount of flour (between 0 and 8 cups as implied by practical considerations in the problem), the number of cups of flour, [tex]\(f\)[/tex], ranges from 0 to 8.

### Determining the Range
- The range is the set of possible output values, which is the number of cookies [tex]\(c(f)\)[/tex] that can be made.
- If [tex]\(f = 0\)[/tex], then [tex]\(c(f) = 24 \times 0 = 0\)[/tex] cookies (since no flour means no cookies).
- If [tex]\(f = 8\)[/tex], then [tex]\(c(f) = 24 \times 8 = 192\)[/tex] cookies.
- Therefore, the values [tex]\(c(f)\)[/tex] can take range from 0 to 192.

### Putting It Together
- Domain: The reasonable domain for [tex]\(f\)[/tex] is [tex]\(0 \leq f \leq 8\)[/tex].
- Range: The corresponding range for [tex]\(c(f)\)[/tex] is [tex]\(0 \leq c(f) \leq 192\)[/tex].

Thus, the correct choice that matches this reasoning is:
The domain is [tex]\(0 \leq f \leq 8\)[/tex]. The range is [tex]\(0 \leq c(f) \leq 192\)[/tex].