the solution of question 8 and question 9

8. (5 points) Use implicit differentiation to find " for the equation: xy - 3xy2 - - =2022 -14 9. (5 points) The demand function for a certain product is given by 2022 p = D(9) = 0.0593 + 2022 where q is the quantity demanded (in hundreds of units) and p is the price in dollars. Jse differentials to estimate the change in price when q changes from 300 to 370 units. 3