College algebra

Question

The formula for converting Fahrenheit temperature, F, to Celsius, C, is C=5/9 ( F-32).  If Celsius temperature ranges from −6°C to 28°C, inclusive, what is the range for the Fahrenheit temperature? Use interval notation to express the range.

Answer 1

Celsius ranges from -6º to 28º

F=(9/5)C+32

F=(9/5)(-6)+32

F=(-54/5)+32

F=-10.8+32

F=21.2º

 

F=(9/5)(28)+32

F=(252/5)+32

F=50.4+32

F=82.4º

the range is 21.2º to 82.4º