Need Help?Read itWatch ItSUBMIT ANSWER6.[0.1/0.6 Points]DETAILSMY NOTESPREVIOUS ANSWERSASK YOURUse differentials to approximate the quantity. (Round your answer to four decimal places.)[70.12],[ Enter a number. ],[8.3813]Please explain how you obtained the above approximation by answering the following questions.a) In order to use the differential, we need a function. What is the most appropriate function for this problem? y=f(x)=b) What is the differential of this function? dy=c) What is the most appropriate value for x?(Enter an integer.)d) What is the corresponding value of dx?e) What is the corresponding value of dy?(Round your answer to four decimal places.)SUBMIT ANSWERPREVIOUS ANSWERSASK YO7.[0.6/0.6 Points]DETAILSMY NOTES