If Fahrenheit temperature ranges from 23 degree to 131 degre

If Fahrenheit temperature ranges from 23 degree to 131 degree, inclusive, what is the range for the Celsius temperature? (-5 degree C, 55 degree C) [-5 degree C, 55 degree C] [73 degree C, 268 degree C] (73 degree C, 268 degree C, )

Solution

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

At F=23,

C=[5(23-32)]/9

= -(5*9)/9

= -5

When F=131,

C =[5(131-32)]/9

= (5*99)/9

= 55

So the range is [-5,55]

Closed interval because 23F and 131F are inclusive.

option B