jasmin30 jasmin30

01-09-2016
Mathematics

contestada

To change a Celsius temperature to fahrenheit, use formula F=9/5C+32 . You are concerned only with temperatures from freezing to boiling. What is the practical domain and the practical range of the function.

Respuesta :

01-09-2016

Hello,

Water is freezing at 0°C and boiling at 100°C.

0<=C<=100
==> 0*9/5<=9/5*C<=100*9/5
==>0+32<=9/5* C+32<=180+32
==>32<=F<=212

D(f(C))=[0;100]
Range(f(C))=[32;212]

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