 Hi and welcome to the session. I am Priyanka and let us discuss the following question. It says the function T which maps temperature in degree Celsius into temperature in degree Fahrenheit is defined by T temperature in Celsius is equal to 9C by 5 plus 32. We need to find temperature at 0 at 28 at minus 10 and the value of C when Tc is equal to 212. So these are the four parts of the question which we are required to find out and this is the formula which will be helping us in doing so and rather we'll define it as a function. So let us proceed on with our solution. Here the function T is defined by 9C divided by 5 plus 32 and we're required to find these four values. Starting off with the first part we need to find Tc when the value of C is given to us as 0. For this we'll be replacing C by 0 and on doing so we have 9 by 5 multiplied by 0 plus 32 which gives us the value of T0 as 0 plus 32 and on further simplification we have the value as 32. So the answer to the first part is the value of T0 is 32 that is the value of the function T when the value of C is 0 is equal to 32. Proceeding on the second part now here we are given we need to write the function once again and now for the second part we need to find the value of the function and the value of C is given to us as 28. So it will be on substituting 28 in place of C and on simplifying we have 412 divided by 5 that is after simplification and this becomes the answer to our second part. Proceeding on with the third part again we need to write the function once again and then we'll substitute the value now as minus 10. So 9 multiplied by minus 10 divided by 5 plus 32 on simplification we have the value of the function when the value of C is taken as minus 10 that is 14. Now the fourth part is a little different part in which we are given that the value of T value of the function is given to us as 212 and we need to find the value of C. So what we are going to do we'll equate 9C divided by 5 plus 32 with 212 and now as we used to solve linear equation in one variable we'll find the value of C. So let's just proceed on this is mere simplification what I am doing over here now in order to find out the value of C we multiply 180 by 5 and divided by 9 let us simplify it and we have the value of C as 100 that is after simplification that becomes the answer to our fourth and final part. So I hope you enjoyed the session and just take care of all your calculations. Bye for now.