Posted by **Anon** on Monday, May 6, 2013 at 8:20pm.

Fahrenheit and Celsius are two measures of temperature. The temperature in degrees Celsius is equal to five ninths of 32 less than the temperature in degrees Fahrenheit. What is a function rule that represents this situation?

- Function -
**Reiny**, Monday, May 6, 2013 at 11:12pm
Draw a vertical line, calling the left side F for Fahrenheit, and the right side C for Celsius

Consider the top of the line to be the boiling point of water and the bottom the freezing point of water

On the C side, mark the top 100 and the bottom 0, (very logical)

On the F side, mark the top 212 and the bottom 32, (totally illogical)

pick any arbitrary point on the line, calling the left F and the right side C

Now create a proportion and solve it

(F - 32))/(212 - 32) = C/100

(F-32)/180 = C/100

100F - 3200 = 180C

100F = 180C + 3200

F = (180/100)C + 32

F = (9/5)C + 32

or after rearranging:

C = (5/9)(F - 32)

## Answer This Question

## Related Questions

- Proportions - To convert a temperature in degrees Celsius to degrees Fahrenheit...
- ALGEBRA - . Water freezes at 0◦ Celsius and 32◦ Fahrenheit and it ...
- Math - To convert a temperature in degrees Celsius to degrees Fahrenheit ...
- Math - To convert a temperature in degrees Celsius to degrees Fahrenheit ...
- Stats - On Tuesday September 27, 2016 the high temperature increased to 36.7 ...
- Algebra - The folrmula F=9/5c+32 can be used to make temperature conversions ...
- math - the formula C=5/9(F-32) is used to convert Fahrenheit temperature,F, to ...
- math - The temperature in degrees Fahrenheit is equal to 32 more than 9/5 times ...
- math - Katie converts the outside temperature from degrees fahrenheit, f, to ...
- physics - You work in a materials testing lab and your boss tells you to ...

More Related Questions