Consider the curve given by xy? – x3y = 6.
(a) Show that dy = 3x’y — ,2.
2xy -
(b) Find all points on the curve whose x-coordinate is 1, and write an equation for the tangent line at each of
these points.
(c) Find the x-coordinate of each point on the curve where the tangent line is vertical.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?