For the function x2 – 2x – 27 = -3 , determine the following: a)Write the equation in Vertex form: y=
for example: (x-4)^2+1 or (x-4)2+1
b)The vertex:
for example: (2,5)
c)max or min:
for example: write max for maximum and write min for minimum
d)Line of symmetry: x=
f) Zeros: x=
X=

The sum of two numbers is 86, and their difference is 20. find the two numbers

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

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)) =