Which of the following relations are NOT functions? Select ALL that apply. a {(1, 3), (1, 7), (5, 11), (5, 15), (9, 19)} b {(-2, 4), (-1, 1), (0,0), (1, 1) (2, 4)} c {(2, 4), (1, 1), (0, 0), (1, -1), (2, -4)} d {(6, 3), (4, 1), (2, 1), (0, -1), (-2, -3)} e {(1, 3), (3, 7), (3, 11), (7, 15), (9, 19)}

Which of the following lines is not parallel to the graph of y = 4x +7?

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)) =

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form