In later math classes you will study polynomial functions that contain higher-ordered terme
such as xor x'. Based on you work in this task, do you believe this theorem holds for
quadratic functions? That is, do all functions of the form y = ar' + bx + c always have two
roots? [Examine the graphs of each of the quadratic functions you have written equations for
this task. Do they all have two roots? Why or why not?]

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

Evaluate the expression. (9 + 5)(3 + 2)0

Someone answer asap 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)) =