Relation between Celsius and Fahrenheit scales is

Keshav observed that the increase in the temperature of a body is given by T_(1) = 2t^(2) for the first 5 minutes and T_(2) = 3t for the next 5 minutes, where T_(1) , T_(2) and 't' are temperatures in Fahrenheit, Celsius scales and time in minutes, respectively. If the initial temperature of the body is 20^(@)F and the relation between the Celsius and Fahrenheit scale is, then find the temperature of the body after 8 minutes in Celsius scale.

Graph shows the relation between Centigrade and Fahrenheit scales of temperature. Find the slope in each graph?

Which of the curves in figure represents the telation between Celsius and Fahrenheit temperatures?

The triple point of carbon dioxide is 216.55 K the corresponding temperature on the celsius and Fahrenheit scale respectively are