College

For one month, Siera calculated her hometown's average high temperature in degrees Fahrenheit. She wants to convert that temperature from degrees Fahrenheit to degrees Celsius using the function [tex]C(F)=\frac{5}{9}(F-32)[/tex]. What does [tex]C(F)[/tex] represent?

A. [tex]C(F)[/tex] represents the output of the function [tex]C[/tex] in degrees Celsius when the input [tex]F[/tex] is in degrees Fahrenheit.

B. [tex]C(F)[/tex] represents the output of the function [tex]F[/tex] in degrees Fahrenheit when the input [tex]C[/tex] is in degrees Celsius.

C. [tex]C(F)[/tex] represents the output of the function [tex]C[/tex] in degrees Fahrenheit when the input [tex]F[/tex] is in degrees Celsius.

D. [tex]C(F)[/tex] represents the output of the function [tex]F[/tex] in degrees Celsius when the input [tex]C[/tex] is in degrees Fahrenheit.

Answer :

Certainly! Let's go through the options to understand what [tex]\( C(F) \)[/tex] represents in this context.

You are given the function:

[tex]\[ C(F) = \frac{5}{9}(F - 32) \][/tex]

This function converts temperatures from degrees Fahrenheit (denoted by [tex]\( F \)[/tex]) to degrees Celsius (denoted by [tex]\( C(F) \)[/tex]).

Let's analyze each option to see which one correctly describes the function:

1. [tex]\( C(F) \)[/tex] represents the output of the function [tex]\( C \)[/tex] in degrees Celsius when the input [tex]\( F \)[/tex] is in degrees Fahrenheit.

- In this option, the function [tex]\( C(F) \)[/tex] receives an input in degrees Fahrenheit (which matches the variable [tex]\( F \)[/tex]) and converts it to degrees Celsius (indicating [tex]\( C(F) \)[/tex]).
- This description is accurate because the formula provided converts Fahrenheit to Celsius.

2. [tex]\( C(F) \)[/tex] represents the output of the function [tex]\( F \)[/tex] in degrees Fahrenheit when the input [tex]\( C \)[/tex] is in degrees Celsius.

- Here, this option suggests that the function [tex]\( F \)[/tex] is converting from Celsius to Fahrenheit, which is not what is happening. The function [tex]\( C(F) \)[/tex] we have converts Fahrenheit to Celsius, not the other way around.

3. [tex]\( C(F) \)[/tex] represents the output of the function [tex]\( C \)[/tex] in degrees Fahrenheit when the input [tex]\( F \)[/tex] is in degrees Celsius.

- This option suggests the conversion from Celsius to Fahrenheit, which is incorrect. Again, our given function takes Fahrenheit as input and gives Celsius as output.

4. [tex]\( C(F) \)[/tex] represents the output of the function [tex]\( F \)[/tex] in degrees Celsius when the input [tex]\( C \)[/tex] is in degrees Fahrenheit.

- This option does not correctly describe the relationship. It incorrectly mentions the function [tex]\( F \)[/tex] and suggests input in Celsius, which is not the process described by [tex]\( C(F) = \frac{5}{9}(F - 32) \)[/tex].

Based on the above analysis, the correct choice is:

[tex]\( C(F) \)[/tex] represents the output of the function [tex]\( C \)[/tex] in degrees Celsius when the input [tex]\( F \)[/tex] is in degrees Fahrenheit. This matches the description of the function given for converting temperature from Fahrenheit to Celsius.